Slashdot Mirror


Benoit Mandelbrot Dies At 85

Beetle B. writes "Benoit Mandelbrot has passed away at the age of 85. I first learned of the Mandelbrot set while reading Arthur C. Clarke's The Ghost From The Grand Banks. Soon after, I got hold of the best fractal generation software of the day — Fractint — and ran it for long periods of time on my XT, exploring the beautiful world that Mandelbrot, among others, had opened up for me. That it was only on a 4-color CGA did not deter me!"

131 comments

  1. From Life ... by Mikkeles · · Score: 3, Funny

    to the Hausdorf Dimension!

    --
    Great minds think alike; fools seldom differ.
    1. Re:From Life ... by Anonymous Coward · · Score: 4, Funny

      Good luck using Google Maps to zoom in on his graveyard.

    2. Re:From Life ... by Sulphur · · Score: 3, Funny

      Have you tried Google Maths?

  2. Dead? by DarkKnightRadick · · Score: 4, Insightful

    I didn't know he was still alive. So much for assumptions.

    --
    "There is a way that seems right to a man, but its end is the way of death." Proverbs 16:25 (NKJV)
    1. Re:Dead? by BradleyUffner · · Score: 4, Informative

      I didn't know he was still alive. So much for assumptions.

      I only knew he was still alive because of this song.
      http://www.jonathancoulton.com/songdetails/Mandelbrot%20Set

    2. Re:Dead? by Beorytis · · Score: 3, Informative
      I knew he was still alive because of this TED talk

      .

    3. Re:Dead? by b4upoo · · Score: 2, Funny

      Yes, but he replicates in ever smaller iterations.

    4. Re:Dead? by Captain+Spam · · Score: 1

      I didn't know he was still alive. So much for assumptions.

      I only knew he was still alive because of this song.
      http://www.jonathancoulton.com/songdetails/Mandelbrot%20Set

      Cripes, JoCo will need to update that verse of the song. Only, I don't think "Mandelbrot's in Heaven... ... ..." and a long pause, while respectful, would work as well musically.

      Of course, he sings an updated version of "Curl" in some of his live shows to account for the fact that the leader of a curling team is the Skip, not the Skipper, so maybe we'll hear a new version soon.

      --
      Demanding constant attention will only lead to attention.
    5. Re:Dead? by Anonymous Coward · · Score: 0

      That has been said (*). Not by me.

      If you think about some discovery, the discoverer is probably alive -- not dead.

      That is due to the accelerating pace of knowledge accumulation.

      (*) I wonder if the guy who said this is still alive (it was a 50% alive / 50% dead of the inventors that ever lived, IIRC).

    6. Re:Dead? by Anonymous Coward · · Score: 4, Funny

      And if anyone knows about still being alive, it's Jonathan Coulton.

    7. Re:Dead? by NotQuiteReal · · Score: 1

      I only knew he was dead because of Slashdot - damn you /.!

      --
      This issue is a bit more complicated than you think.
    8. Re:Dead? by nacturation · · Score: 1

      I didn't know he was still alive. So much for assumptions.

      This news is quite surreal... almost like it's half real and half imaginary.

      --
      Want to improve your Karma? Instead of "Post Anonymously", try the "Post Humously" option.
    9. Re:Dead? by DarkKnightRadick · · Score: 1

      He did the Portal song?

      --
      "There is a way that seems right to a man, but its end is the way of death." Proverbs 16:25 (NKJV)
    10. Re:Dead? by DarkKnightRadick · · Score: 0

      +1 funny

      --
      "There is a way that seems right to a man, but its end is the way of death." Proverbs 16:25 (NKJV)
    11. Re:Dead? by DarkKnightRadick · · Score: 0

      Now that's interesting. Should have posted with your name to get some karma. (:

      +1 informative for parent

      --
      "There is a way that seems right to a man, but its end is the way of death." Proverbs 16:25 (NKJV)
    12. Re:Dead? by RichardJenkins · · Score: 1

      Yes

    13. Re:Dead? by PsychicX · · Score: 2, Interesting

      He was at our graduation ceremony this past May (Hopkins 10) getting an honorary degree, in fact.

    14. Re:Dead? by TapeCutter · · Score: 2, Funny

      May he Replicate In Peace

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    15. Re:Dead? by wastedlife · · Score: 1

      "Mandelbrot's in Heaven.
      At least, he is now that he's dead.
      When I first wrote this song, he was teaching math at Yale."

      Could probably be cleaned up to be more respectful but this gets the point across and fits the beat of the song.

      --
      Said, "It's just like dice but it's got more sides And it tells me who lives and who dies"
    16. Re:Dead? by wastedlife · · Score: 1
      --
      Said, "It's just like dice but it's got more sides And it tells me who lives and who dies"
  3. Check out the obit on the New York Times by Anonymous Coward · · Score: 4, Funny

    You can use your browser to zoom into it infinitely revealing more patterns.

  4. awesome mind by LiquidCoooled · · Score: 0

    RIP Benoit.
    A true genius no longer of this world.

    His work has been inspiration to

    --
    liqbase :: faster than paper
    1. Re:awesome mind by Anonymous Coward · · Score: 1, Insightful

      ...

    2. Re:awesome mind by badboy_tw2002 · · Score: 0, Offtopic

      .....

    3. Re:awesome mind by Anonymous Coward · · Score: 0, Offtopic

      ......

    4. Re:awesome mind by advid.net · · Score: 1

      ........

  5. Fractint? Pah? by Anonymous Coward · · Score: 0

    Fractint? Back in the early 80s we had to write our own software to draw fractals on our shitty 8 color displays and we had to wait for the results the following morning.

    Now get off my lawn.

    1. Re:Fractint? Pah? by Anonymous Coward · · Score: 2, Insightful

      Quite - slashdot's obit for a mathematician: read about one thing he did in a popular mass-distributed sci fi book, ran a bit of software (ON A FLOPPY DISK AND ON A FOUR COLOUR DISPLAY!)

    2. Re:Fractint? Pah? by Viperpete · · Score: 5, Insightful

      I was going to post much the same thing. Some nerd eulogy, 10 words pertaining to the death of a math hero, ~70 devoted to the author. Can we get more HF Asperger/Narcissistic.

      --
      loose: not fitting closely or tightly != lose: to suffer the deprivation of
    3. Re:Fractint? Pah? by Jah-Wren+Ryel · · Score: 2, Insightful

      I was going to post much the same thing. Some nerd eulogy, 10 words pertaining to the death of a math hero, ~70 devoted to the author. Can we get more HF Asperger/Narcissistic.

      Yes. How awful that the author would talk about how the deceased affected him personally.
      If ever affected as many people as Mandlebrot did, I would be insulted if they talked about it at my funeral.

      --
      When information is power, privacy is freedom.
    4. Re:Fractint? Pah? by Anonymous Coward · · Score: 0

      Mandlebrot joy. This is a good thing regardless.

    5. Re:Fractint? Pah? by MK_CSGuy · · Score: 1

      Personally I think it was nice, giving us a perspective how the deceased affected the writer's life, and probably others' as well.

    6. Re:Fractint? Pah? by BluBrick · · Score: 1

      Yes, Fractint. It was my introduction to truly Free Software. Because the group that released it called themselves Stone Soup Software, and I knew the story of Stone Soup, I immediately understood what Free Software was all about.

      I always remember this little snippet from one of the many text files that accompanied the archive:

      Don't want money, got money. Want admiration.

      --
      Ahh - My eye!
      The doctor said I'm not supposed to get Slashdot in it!
    7. Re:Fractint? Pah? by nurb432 · · Score: 2, Informative

      Real men did it with checkerboards. In the 80's i had an ST, so i was not trapped in 8-bit color land. But the overnight thing, i totally agree.

      --
      ---- Booth was a patriot ----
    8. Re:Fractint? Pah? by Beetle+B. · · Score: 1

      Heh, well, I suppose I could have written more, but I thought linking to his Wikipedia page should be sufficient. Although reading it again, I should have at least mentioned that he coined the word "fractal", in case there's a /. reader out there who does not know of Mandelbrot.

      And it was a 5.25" floppy disk, although I copied it to my 20 MB HD.

      --
      Beetle B.
    9. Re:Fractint? Pah? by Geminii · · Score: 1

      It did seem a little...

      *sunglasses*

      ... self-referential.

      YEAAAAAAAAAAA...

  6. From his February 2010 TED visit by QuietLagoon · · Score: 4, Informative
    1. Re:From his February 2010 TED visit by chichilalescu · · Score: 1

      I saw a similar presentation he gave in 2007. We need more people like him.

      --
      new sig
    2. Re:From his February 2010 TED visit by Chelmet · · Score: 1
      I'm surprised.

      I listened to that TED podcast a few weeks ago, I found it really interesting, but I was driving at the time, and once getting home it had completely slipped my mind to read more in to it.

      His presentation was excellent, and it didn't occur to me that he was nearly that old.

    3. Re:From his February 2010 TED visit by RDW · · Score: 2, Interesting

      Thanks! More years ago than I care to remember (about the same time I was playing around with Fractint from a covermount floppy of some magazine) the great man came to our university to give a talk. Stupidly I didn't join the queue early enough and got stuck in an overflow room (the maths guys hosting his visit hadn't calculated the demand correctly). Still cool to hear him talk, though. I remember the Genesis Device got a mention:

      http://vimeo.com/5810737
      http://www.youtube.com/watch?v=NM1r37zIBOQ

  7. Testimony by kale77in · · Score: 4, Interesting

    I was in year nine (mid-high-school) in country Australia, when my grandmother gave me a subscription to Scientific American; on the front of one of the first issues was a Mandelbrot set. I put the pseudocode into Atari Basic on my trusty 800XL (1.86kHz), and it produced a 40x40 graph of the set in just on 6 hours. It's been one of my standard learn-a-new-language exercises ever since, and the single thing I love the most about mathematics.

    1. Re:Testimony by Mojo66 · · Score: 1

      Yeah I read the same issue ("Spektrum der Wissenschaft" here in Germany) and quickly wrote a programm for my Apple ][, only to be surprised of how slow it was. Later, I re-wrote the same program in 6502 Assembler using Merlin, and it took about 5 minutes to fill the 280x192 screen. Then I rewrote the program to directly print the Mandelbrot set on an Epson 800 printer in ESC/P on 15 DIN A4 sheets, spanning 1x1m. The program ran for 1 week on a Saturn 3.5 MHz accelerator card.

    2. Re:Testimony by Nethead · · Score: 1

      Yep, that's how I learned Asm on the C64. Kept moving parts of the BASIC code to machine. I leaned a lot about optimization that way, stuff that has stayed with me for decades.

      --
      -- I have a private email server in my basement.
    3. Re:Testimony by butlerm · · Score: 2, Informative

      I put the pseudocode into Atari Basic on my trusty 800XL (1.86kHz)

      I think you mean something megahertz. A one kilohertz computer wouldn't be good for much of anything. The Apple II, C-64, Atari 400/800, etc. all ran 1 Mhz 6502 CPUs at approximately 1 Mhz, somewhat more than that in the Atari case.

    4. Re:Testimony by MillionthMonkey · · Score: 1

      When I was ten my first computer was a ZX81 and in SLOW mode (w/ no screen flicker on each keystroke) it ran at 800 kHz. It executed BASIC code about as fast as you could read it. Seriously- I remember figuring this out and realizing I was FORCED to learn ASM on the Z-80. Then I learned it and was AMAZED that I could make an ASM loop run 65536 times in less than a second, but I couldn't think of anything cool to do in the loop body.

    5. Re:Testimony by mikael · · Score: 2, Interesting

      I remember those days - reading his book on the "Fractal complexity of nature" was a real inspiration. It was strange to realize that snowflakes, ice crystallisation, mountain terrain, the outlines of coastlines, branching of trees and lightning, aggregation of soot particles, growth of coral and seashells, periodicity of landslides and earthquakes could all be modelled by fractals.

      Some of those simulations could be done within seconds on an Atari(XL) or other home computer. Others took hours like the Mandelbrot set as well as others like John Conway's Game of Life - the 1D version was a bit faster. Spending three Summer evenings running a 6502 implementation of John Conway's "Life" program on a for all 1000+ generations on a 160x80 grid. I always remember the stars in the twilight sky at that time looked just like the cover of the 1978 BYTE magazine.

      --
      Vintage computer adverts: http://www.vintageadbrowser.com/computers-and-software-ads
    6. Re:Testimony by fraktus · · Score: 1

      When I interview developers I show then a shader that draws the Mandelbrot fractal and I ask them what language do you think is this code written and of course what do you think is going to be displayed by this so small code loop, this is leading me to very interesting discussion with the candidate!

      --
      In cyberspace nobody knows you're a cat!
  8. I feel a little bad about this by __aawimn3783 · · Score: 1

    but the first thing I thought was, "damn, that one Jonathan Coulton song is going to be really confusing whenever he performs it now." Seriously, though, it's sad that he's dead but I'm happy to reflect that he had the kind of full, accomplished life for which we all hope.

    1. Re:I feel a little bad about this by Burpmaster · · Score: 3, Interesting

      I feel a little bad about this but the first thing I thought was, "damn, that one Jonathan Coulton song is going to be really confusing whenever he performs it now."

      Can't be worse than immediately thinking "I must post the best yo dawg joke ever." You know, he put the Mandelbrot Set in the Mandelbrot Set, so we can explore it while we explore it.

      From this day forward, this recursive meme ought to be associated with Mandelbrot. After all, he put something inside itself infinitely many times long before Xzibit did so once.

  9. Fractint by Bazman · · Score: 1

    Is there anything better than Fractint now? I too played with it for ages on a clunky old IBM PC with clicky keyboard and Windows 2 (although Fractint ran in DOS though, I think, and necessitated misc tweaking with graphics drivers to make it work, you kids don't know how lucky you are...)

    1. Re:Fractint by paskie · · Score: 4, Informative

      The best I know is GNU XaoS. It can do real-time zooming (it did fine even on my old P133!) and features plenty of settings and fractal equations. I know there are perhaps better programs nowadays that let you easily write custom equations, scripts for 3D fractals and whatnot, but AFAIK none is free and/or supports Linux well.

      --
      It's not the fall that kills you. It's the sudden stop at the end. -Douglas Adams
    2. Re:Fractint by Anonymous Coward · · Score: 0

      Fractal eXtreme? It's not as full-featured as FractInt but the UI is about a million times better. On a fast multi-core CPU (64-bit version especially) you can real-time zoom without pausing to a magnification of a googol:1 or more. The maximum magnification is much higher than that, but eventually you have to start waiting for the frame to render before you can choose your zoom target. Mouse-wheel, double-click, or hold down 'I' and point at an interesting area.

      It's amazing how much faster computers are now, but the animated zoom, rendering from the midde instead of the top, and the all-important lower-res early passes also help keep it interactive when it's not instantaneous. FractInt was always cool, but too clunky for my tastes. (http://www.cygnus-software.com/)

    3. Re:Fractint by dserpell · · Score: 1

      Is there anything better than Fractint now? I too played with it for ages on a clunky old IBM PC with clicky keyboard and Windows 2 (although Fractint ran in DOS though, I think, and necessitated misc tweaking with graphics drivers to make it work, you kids don't know how lucky you are...)

      You have the open-source "xaos" http://xaos.sf.net/ for a fast interactive fractal exploring and "Fraqtive", http://fraqtive.mimec.org/ for a beautiful view generator. Also, there are new versions of fractint, but the UI is really outdated. Wikipedia has a list with a few more, at http://en.wikipedia.org/wiki/Fractal-generating_software

    4. Re:Fractint by gregbaker · · Score: 1

      I just looked around the Ubuntu repositories for nostalgia's sake and found Fraqtive (http://fraqtive.mimec.org/). It looks pretty slick, uses multiple cores and SSE instructions to get you there faster, Win/Mac/Linux.

      The last 3 minutes of exploring would have taken weeks on my Apple II.

    5. Re:Fractint by sznupi · · Score: 1

      Not exactly interactive, but still quite nice concept: http://en.wikipedia.org/wiki/Electric_Sheep

      --
      One that hath name thou can not otter
    6. Re:Fractint by illumastorm · · Score: 1

      Aren't electric sheep the objects androids dream about?

    7. Re:Fractint by mark-t · · Score: 1

      Doesn't Xaos use a limited precision though, creating a rather hard limit on how far one can zoom in, even though performance and resources may not necessarily be getting taxed?

    8. Re:Fractint by sznupi · · Score: 1

      ...or PCs, it would seem.

      Anyway, I just remembered one more shiny: http://www.cs.caltech.edu/~keenan/project_qjulia.html (in "Ports" few variants which might be more to your liking; this page includes also "2D" mandelbrot and julia gpu viewer)

      --
      One that hath name thou can not otter
    9. Re:Fractint by ptrace · · Score: 1
    10. Re:Fractint by Randle_Revar · · Score: 1

      KaiRo made a SeaMonkey extension Mandelbrot explorer. Probably works in FF as well.

    11. Re:Fractint by Anonymous Coward · · Score: 0

      ZoneXplorer by Elena Novaretti, available for classic Amiga OS and PowerUp Amiga (PPC) (I think), and MorphOS (and maybe other OS, not sure), is a fantastic fractal generator. No real-time zooming, but you can do some things with it that are very unique. Not sure where her home page is these days.

    12. Re:Fractint by Sulphur · · Score: 1

      They think about electric sheep to go to sleep, but once asleep they dream about the electric jeep and weep.

    13. Re:Fractint by MillionthMonkey · · Score: 1

      I used to think this was a big deal, but I decided not to bother with arbitrary precision recently just because it sacrifices performance too much at ordinary zoom levels (unless you aren't lazy). FRACTINT implemented it adaptively, but it was still like hitting a wall.

      The thing is, there's fundamentally nothing you can see at a high zoom level that doesn't look very similar to features visible somewhere at lower magnification. After you zoom in a dozen times, the floating point arithmetic bugs are suddenly the most interesting things you see.

    14. Re:Fractint by techno-vampire · · Score: 1

      Personally, I like Gnofract 4D. It's quick, has a nice point 'n click interface and it's easy to save images for later use or sharing. I use if on Fedora 13, but there are Windows and Mac versions as well.

      --
      Good, inexpensive web hosting
    15. Re:Fractint by melikamp · · Score: 1

      Another one for Gnofract. The customization options are crazy good.

    16. Re:Fractint by baud123 · · Score: 1

      There's Gnofract 4D too at http://gnofract4d.sourceforge.net/ and with even a flickr group http://www.flickr.com/groups/gnofract4d/

  10. Mandelbrot's in heaven... by Negathle · · Score: 1

    ...at least he is now that he's dead. Right now he's no-longer alive and teaching math at Yale. Thanks for all those bad-ass fucking fractals! http://www.jonathancoulton.com/2007/09/02/mandelbrot-set-video-2/

  11. That it was only on a 4-color CGA did not deter me by commodore64_love · · Score: 1

    Poor guy. Those of us with our $150 or $300 Commodores and Ataris ran the fractals in gorgeous 16 or 128 colors. Perfect example of how cheaper products can be better than those $100 PCs or $3000 Apples.

    I got bored with fractals quickly. The odd shapes they generated were pretty, but I found the graphix demos generated by pirate groups to be far more interesting.

    --
    "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  12. RIP by dln385 · · Score: 1

    Benoit Mandelbrot practically invented a new field of mathematics that we now use for everything from measuring the size of forests to identifying cancer in its early stages. He was the best of mathematicians.

    Eight months ago he gave a ted talk describing his work. If you want to explore fractals for yourself, I recommend GNU XaoS for all platforms.

  13. Re:That it was only on a 4-color CGA did not deter by commodore64_love · · Score: 1

    Correction:

    >>>$1,000 PCs

    --
    "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  14. Fractal mathematicians don't die by JamesP · · Score: 1

    The keep splitting themselves into even fractionally dimensioned smaller pieces

    --
    how long until /. fixes commenting on Chrome?
    1. Re:Fractal mathematicians don't die by fractoid · · Score: 2, Funny

      Little fleas have lesser fleas upon their backs to bite 'em.
      And lesser fleas have smaller fleas, so on ad infinitum.

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    2. Re:Fractal mathematicians don't die by fractoid · · Score: 4, Funny

      Too long, lacks pithiness. Vin Diesel's character, Riddick, put it better in Pitch Black: "Got it all wrong, Holy Man. I absolutely believe in God. And I absolutely hate the fucker." Much more concise.

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    3. Re: Fractal mathematicians don't die by shubert1966 · · Score: 2, Funny

      If reincarnation is true, he'll come back as twins.

      Fractals are addictive. Like SWINTH for the Commode64, watching a fire, or Hypnotoad.

      --
      Stuff that matters.
    4. Re:Fractal mathematicians don't die by Anarchduke · · Score: 0, Offtopic

      umm..yeah.

      I know its a mistake to even reply to this crap, but, here it goes...

      Hunger is caused not by a lack of food in the world, but in our limited ability to distribute food to the world's hungry. Also, when we do get food over to some of the more starving nations, it often does not end up in the bellies of the hungry, but the warehouses of the corrupt. Suppose a god did "eliminate hunger". So, now the six billion people are nice and full and don't have to worry about starving to death. With all this food but without any restraint, there would be an explosion of births as there is suddenly nutrition to support 12 billion, 18 billion, or more. Now that same god has to do even more work to support the 20 billion people who are now completely unable to support themselves at 6 billion. Thus our species has become little more than useless pets. Is that what you want? To be utterly dependent on the intercession of a god for your life? Perhaps god doesn't intervene because he wants the human race to grow the fuck up.

      The same reasoning applies to disease. Disease does a generally good job at population control, this was set in place presumably by god to moderate the effects of a species population explosion. Since you are so adamant about there not being a god (or if there is, that he is evil), what makes you think humans are at all special? All humans are just a bunch of apes with huge mutant brains. You are so adamant about arguing against god, you forget to be consistent. According to you, if god made us and we are special, then he is evil. But you don't believe in god. So what's the big deal about disease. How should we be any more privileged than the pidgeon, the rat or the platypus. Disease helps keep their populations in check, why should it not do the same for us?

      Instead of being pissed of at whatever god, why don't you accept responsibility that we do all this to ourselves? For all that you blame the christian god for every evil, did you never stop and think that perhaps you are not the most intelligent being in the universe. Perhaps god knew something about that city of people he had annihilated that you didn't know. Perhaps there was a mutant genetic disorder attached to the Y chromosome. If that were the case, only leaving alive virgin females is the only way to be absolutely sure the mutant "Y" didn't replicate and infect all the future generations of mankind.

      Bet you didn't think of that one.

      Finally, the reason all those Christians say you can't judge god by human standards is the same rational as to why I don't yell at my dog for not leaving a note on the refrigerator when he takes the car for a spin. You don't expect a dog to understand humans or act or think at our level; how can you honestly judge a being who created the universe?

      --
      who prays for Satan? Who in 18 centuries has had the humanity to pray for the 1 sinner that needed it most? ~Mark Twain
    5. Re:Fractal mathematicians don't die by mpeskett · · Score: 1, Offtopic

      I'm going to assume you're a believer. I'm not. I'm also not the AC from up above, but I agree with a fair bit of what he said.

      Suppose a god did "eliminate hunger". So, now the six billion people are nice and full and don't have to worry about starving to death. With all this food but without any restraint, there would be an explosion of births as there is suddenly nutrition to support 12 billion, 18 billion, or more.
      (snip)
      The same reasoning applies to disease. Disease does a generally good job at population control, this was set in place presumably by god to moderate the effects of a species population explosion.

      So what you're telling me here, is that your all-knowing, all-powerful, all-loving god couldn't come up with any better way to keep the population down than through starvation and disease? Mass suffering and death is not a kind way to prevent overpopulation; it's the cruellest possible way - with omnipotence you could just adjust the fertility rate so that excess children wouldn't be born, not bring thousands of children into the world for the few short years they can eke out before they die in agony from hunger or illness.

      Do you have any idea how painful it is to die that way? The slightest conception of what a horrific death people go through when they can't get enough food to live? Even if you don't, the god you believe in would have to know in intimate detail how thousands, millions, of "his children" are suffering and dying, and apparently he decrees that this is good? Your god, if he existed, would be a monster.

      According to you, if god made us and we are special, then he is evil. But you don't believe in god. So what's the big deal about disease.

      He said very clearly at the beginning that despite not believing in god, his argument was that even if god did exist, he would not be a fit object of worship. That the god described is evil, and hence should be reviled, even if he could be proved to exist. To an atheist, disease poses no problem; it's just something that happens and there's no special reason why it shouldn't. But for a believer... well, you have to wonder why your loving god would inflict ebola on the world.

      You are correct though, that the animal kingdom is also full of suffering and death that an omni-max creator could have prevented. You say "kept in check by disease" so airily, as if most diseases aren't a horrible way to die. There is nothing in nature that suggests it was created by a kind or benevolent creator; every day animals (human and non-human) die by the million in terrible pain, debilitated by hunger and disease or torn open by predators. Either god does not exist (and all this suffering is just the way things are for entirely non-supernatural reasons) or your god exists but doesn't care, or created a world full of suffering for his own amusement.

      Instead of being pissed of at whatever god, why don't you accept responsibility that we do all this to ourselves?

      Once again, the argument was not about whether god exists, but what kind of being he would be if he did exist. An omnipotent being can intercede in any way imaginable with no effort whatsoever, if he existed then he would have ultimate power to bring about or prevent any event, so anything that happens must happen because he so chooses. In short, the god you believe in would have to be a sadist (if he existed).

      The horrors of hunger and disease are no challenge to the atheist worldview, because they can come about by natural causes, but if you believe in god then the burden is on you to explain why he allows such horrible things to go on if he loves us all so much.

      For all that you blame the christian god for every evil, did you never stop and think that perhaps you are not the most intelligent being in the universe.

      Who's blaming anyone? I would "blame" the natural world for the consequences that an a

    6. Re:Fractal mathematicians don't die by mpeskett · · Score: 1

      Oh also, RIP Benoit Mandelbrot. I may have gotten slightly distracted by holy war in the comments, but that was only because I hadn't heard of you in any context but the name of the fractal until today, and didn't find the news all that interesting.

  15. Another Mandelbrot - Clarke connection by sznupi · · Score: 2, Interesting

    I first learned of the Mandelbrot set while watching one of Clarke documentaries, Fractals: the colours of infinity - very nicely done; very inspiring(*), as was the performance (despite its shortness) of Benoit Mandelbrot himself.

    Now both gone :/

    (*)perhaps too inspiring - I still wait for something like that fractal compression of parrot picture.

    --
    One that hath name thou can not otter
  16. He didn't really die, you know by roman_mir · · Score: 4, Insightful

    if you look closer, you'll realize that he didn't die, it's just he became too big for us to see.

    1. Re:He didn't really die, you know by istartedi · · Score: 1

      1: No, look he's over there.
      2: Where?
      1: Between this and that.
      2: OK, between this and that. There's a thing between this and that.
      1: Yes, look between this and that other thing.
      2: OK, there's something there is that him?
      1: No, look between this and that. Keep looking...

      --
      For all intensive purposes, "whom" is no longer a word. That begs the question, "who cares"?
    2. Re:He didn't really die, you know by Randle_Revar · · Score: 1

      >begs the question

      You know, I have given up on this one. Not only is it too late to save it, it is a horrible translation in the first place. Nowadays I prefer to use the Latin: petitio principii. After all we Latin for other logical fallacies, like ad hominem and non sequitur

      As for "whom" I don't care one way or the other. "intensive purposes" is just horrible, though. It sounds like nails on a chalkboard.

    3. Re:He didn't really die, you know by roman_mir · · Score: 1

      well, look at the rest of that comment. Did it make any sense at all from top to bottom?

      Thus, of-course, it's "intensive purposes" and "begs question", where there was no begging of any question obviously.

    4. Re:He didn't really die, you know by Randle_Revar · · Score: 1

      Oh, I understood what he was doing.

    5. Re:He didn't really die, you know by Anonymous Coward · · Score: 0

      He's definitely hiding somewhere in here. Good luck finding 'im!

  17. Mandelbrot plot by JohannesJ · · Score: 5, Funny

    In school we had to plot Mandelbrots. Now Mandelbrot has a plot of his own.

    1. Re:Mandelbrot plot by roman_mir · · Score: 1

      Ooooh, so does plot Mandelbrot in Soviet Russia?

  18. damn you rss! by Anonymous Coward · · Score: 5, Funny

    http://news.slashdot.org/story/10/10/16/1446231/Benoit-Mandelbrot-Dies-At-85?from=rss

    rss takes another victim...

  19. An Inspiration by hoover · · Score: 3, Insightful

    I think those pictures he came up with first inspired an entire generation of would-be computer scientists, maths geeks, physicists and Scientific American readers. How such a simple iteration could render those fascinating patterns even on a 2d grid, remains to this day one of the big mysteries. R.I.P. Benoit, I hope you'll finally be able to make sense of the fractal nature of things from up / down there!

    --
    Ever wondered whats wrong with the world? http://www.ishmael.org/
  20. I'll miss the guy by line-bundle · · Score: 4, Interesting

    I met the guy personally at least 4 times in the last 5 years. He was great to get along with and not aloof at all for all his successes.

    I'm currently following up on is work in finance (stable distributions).

    May he RIP, and may his family consider him resting.

  21. Fractals.. a gateway drug to more complex models by seandoyle44 · · Score: 5, Interesting

    I remember the Scientific American with the Mandelbrot set on the cover - it was a huge influence on my life. I was working as a research assistant at the Federal Reserve Board in DC and was losing interest in mathematical modeling as a way to understand anything in the real world. Most of the models I was dealing with were linear or mostly linear. When I read the article at first I thought it was some cheap trick or approximation... but gradually I realized it was different than anything I had seen before. So - being a rational, optimizing actor I then left the field of economics .. the most utility-maximizing decision I ever made :-) Since then I've always viewed fractals as a gateway drug to more complex models of the universe. So many processes unfold over time; fractals are just one of the ways to get a glimpse of what might be going on. Thanks Dr. Mandelbrot!

  22. Mandelbrot Set by dirkson · · Score: 4, Insightful

    He gave us order out of chaos; he gave us hope where there was none. And his geometry succeeds where others fail. Mandelbrot's in heaven.

    1. Re:Mandelbrot Set by Anonymous Coward · · Score: 0

      He gave us chaos out of order. Fixed that for you.

    2. Re:Mandelbrot Set by AndroidCat · · Score: 1

      Mandelbrot, truly a t-shirt icon!

      --
      One line blog. I hear that they're called Twitters now.
    3. Re:Mandelbrot Set by lennier · · Score: 1

      You're a Rorshach test on fire. You're a day-glo pterodactyl. You're a heart-shaped box of strings and wire and one bad-ass f*ing fractal.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
  23. Was there ever a real-time viewer... by mark-t · · Score: 1

    ... that was not merely limited to single or even double precision?

    1. Re:Was there ever a real-time viewer... by wildsurf · · Score: 1

      Yes, KPT Fraxplorer in the KPT5 suite of Photoshop plug-ins implements 1024-bit math to zoom in far deeper than double-precision allows.

      --
      Weeks of coding saves hours of planning.
    2. Re:Was there ever a real-time viewer... by spitzak · · Score: 2, Informative

      He asked for "real time".

      I would suspect the switch from hardware doubles to software arbitrary-precision produces many orders of magnitude of slowdown so the answer is no.

  24. Math and youth by ortholattice · · Score: 5, Interesting

    Defying the notion that mathematicians are over the hill at age 30, Mandelbrot made his fractal breakthroughs when he was in his 50s. It gives the rest of us some hope. :)

    1. Re:Math and youth by Anonymous Coward · · Score: 0

      Inspiring. Let us never stop exercising that muscle we call the brain*, and maybe we'll leave the world a little richer with knowledge.

      * I had a buddy who, upon learning that the the accident risk to new motorcyclists is the highest in the first several months of riding, said he would get his license then wait six months before starting to ride.

    2. Re:Math and youth by ArundelCastle · · Score: 2, Interesting

      Defying the notion that mathematicians are over the hill at age 30,

      Wait 'till you hit 31, that's when mathematicians are in their prime.

    3. Re:Math and youth by melikamp · · Score: 1

      If allowed to live long enough, every mathematician will hit his or her prime infinitely often.

    4. Re:Math and youth by treeves · · Score: 1

      ...but less and less often as time progresses.

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
  25. Fractint Rocks by pcjunky · · Score: 1

    I spent many hours exploring fractals with that software. Though I had a little better graphics (EGA). Fond memories.

  26. A great mathematician is no more... by farrellj · · Score: 2, Insightful

    I, too, used Fract386, which became Fractint....I worked at a computer store in Toronto, and we used to sell so many NEC Multi-Sync monitors with ATI's VGA Wonder card based upon showing Fractint on it!

    Through someone on I met on LJ, I was able to get a "autographed mandelbrot", basically a color print out of part of the Mandelbrot set, autographed by the now, late, great Benoit Mandelbrot. Although I never got to meet him, he discovery has given much beauty to my life.

    ttyl
              Farrell

    --
    CAN-CON 2019 - Ottawa's only book oriented Science Fiction Convention! October 18-20, Sheraton Hotel, Ottawa, Canada h
    1. Re:A great mathematician is no more... by Anonymous Coward · · Score: 0

      ATI's VGA Wonder card

      Late-80s Queen Street / College Street represent!

      Funny thing is, because of that card (which is sitting in a box somewhere in my boneyard), I got into computing. The monitor (a NEC Multisync II) syncs up to VGA frequencies, so it works with the laptop I keep nearby, but more importantly, it syncs down to 15.75 kHz - which modern VGA monitors won't - and is still on my test bench for the old-school arcade game hardware I hack on some 20+ years later.

      But back in the day, you're damned right it displayed fractals. I didn't buy that 80287 (and learn the x87 extensions) for nothin'!

      Thanks, Dr. Mandelbr0t, (and thanks, local hardware shops) for what turned into an awesome tech career.

  27. Thank you Mandelbrot! by KingAlanI · · Score: 3, Insightful

    Fractals were how this non-artist got his art credit in high school with style. :)

    --
    I listen to both RIAA and non-RIAA stuff if I like the music, tangential business/politics nonwithstanding.
  28. Baruch Dayan Haemes by bennyp · · Score: 1

    Upon receiving sad tidings, a Jew recites the blessing "Blessed is the True Judge" The Omnipresent should comfort the Mandelbrot family in the Gate of Zion's Mourners in Jerusalem.

    --
    could it be?
  29. Colors of Infinity by Anonymous Coward · · Score: 0

    To commemorate this, we should all re-watch Colors of Infinity: http://www.youtube.com/watch?v=qB8m85p7GsU

  30. This is a good chance to remind y'all by symbolset · · Score: 4, Interesting

    Many of the people who have discovered things great and small that astonish and delight are still living. It's not too late to look them up on the internet and personally thank them.

    --
    Help stamp out iliturcy.
  31. So much to say by muridae · · Score: 1

    My feelings at his passing are both too real and too complex to explain in plane terms.

  32. Seen it all by dgriff · · Score: 5, Funny

    ran it for long periods of time [...] exploring the beautiful world

    Yeah, but when you've seen one part of the Mandelbrot set, you've seen it all.

    1. Re:Seen it all by Anonymous Coward · · Score: 0

      Wrong, even for a joke: The Mandelbrot set is not auto-similar. Go check it. Its complexity is nonending.

  33. Rest in peace by cjfs · · Score: 1
  34. Farewell by Fractal+Dice · · Score: 1

    The boundaries of his life were filled with many twists and turns.

  35. Check out 3D fractals by maktlaust · · Score: 2, Interesting

    Zooming into a Mandelbox, with weird music: http://vimeo.com/13886600

  36. My first program... by curious.corn · · Score: 2, Interesting

    ... back in uni - gwbasic I think - was a Mandelbrot set renderer. We were just starting with Mathematical Analysis and the first real struggles with imaginary numbers, sequences, series and limits. I guess messing around with it cost me an exam session, but it was way much more fun than rote theorems (later Profs were good, not that first class though ;( )

    RIP

    --
    Mi domando chi à il mandante di tutte le cazzate che faccio - Altan
  37. CG procedurals by MobileTatsu-NJG · · Score: 2, Interesting

    A few years ago it was popular to make CG images of starships with a procedural/fractal nebula in the background. I used to make comments like: "The Enterprise is investigating the Mandelbrot Nebula", but nobody I know of ever got it.

    --

    "I like to lick butts!" by MobileTatsu-NJG (#32700246) (Score:5, Informative)

  38. Inspiring life by cuby · · Score: 1

    At least for me... I first read something about him, in my freshman year in college, in the book Caos, by James Gleick http://www.amazon.com/exec/obidos/ASIN/0140092501/jamesgleick. To this day I remember him with the utmost consideration. I hope he had a happy life. I'll never forget his work... He was one of the great scientists of our time.

    --
    Math is beautiful... e^(pi*i)+1=0
  39. Re:Fractals.. a gateway drug to more complex model by lpaul55 · · Score: 1

    I heard Mandelbrot talk at IBM a few years ago. He was concerned about the increase in volatility of the financial markets - this was before 2008 - and I wonder what his last thoughts were on the subject of economics.

    --
    ... now back to the bit mines.
  40. A truly great man. The world is a little poorer.. by plasmasurfer · · Score: 2, Interesting

    He was a great man in every sense of the word. Despite his enormous accomplishments and being a historical figure, he still took time to address his emails personally and answered every reasonable request. I was his assistant of sorts during a period in Cambridge, MA, and one time he got this request from a person asking him to write to his HS math teacher because this teacher had inspired him to go into math. Well Prof Mandelbrot wrote him a beautiful letter that still chokes me up when I remember it. After he dictated it to me, I told him that at that moment and from then on, that I would be glad to take a bullet for him. He chuckled, thanked me in a very modest tone and proceeded to the next topic. He was always polite and pleasant and full of energy. May he rest in peace.

    --
    To spot the expert, pick the one who predicts the job will take the longest and cost the most.
  41. A demonstraion of his humility by Anonymous Coward · · Score: 0

    http://www.ted.com/talks/lang/eng/benoit_mandelbrot_fractals_the_art_of_roughness.html

  42. Re:Fractals.. a gateway drug to more complex model by Anarchduke · · Score: 1

    he thought, "and I can't take it with me."

    --
    who prays for Satan? Who in 18 centuries has had the humanity to pray for the 1 sinner that needed it most? ~Mark Twain
  43. Re:Fractals.. a gateway drug to more complex model by janzen · · Score: 1

    Glad to see someone else mention this. Everyone knows about his work on fractal geometry, but few people realize that since the 1950s he was interested in the financial markets as well, being one of the first to apply computer technologies to market data. I highly recommend his very readable book, "The (Mis)Behavior of Markets".

  44. His good counsel... by MikeYoung · · Score: 4, Interesting

    A sad day for me and for others who admired his inveterate quirkiness and his uncanny ability to "think outside the box." I never met Dr. Mandelbrot, but we had about a dozen phone conversations over the past 15 years. He liked my research and appreciated that his work on cotton prices inspired me to challenge conventional wisdom in my field of real estate. In our last conversation, after mentioning that I was updating some old work, I asked him whether to employ newer technology or simply to extend the earlier work with the same technology used back in 1995. As was often the case, he related a story. This time it concerned a mentor whom he described as a genius and aviation pioneer who received little recognition for his work. Why? Well, it seemed that this man never was satisfied with his aircraft designs, always knowing that he could do something better. As a consequence of his endless quest for perfection, the man never saw his airplane fly. Dr. Mandelbrot's advice to me was "Just get the plane to fly. Then, others will know what can be refined." I will miss his sage counsel.

  45. To Mandelbrot, and Beyond the Infinite. by flajann · · Score: 1
    Every since the publication of "The Fractal Geometry of Nature", my views of our Universe have been transformed.

    And in case you haven't noticed, the title here is a paraphrase of a title of a chapter of a story (or film) of another Great that, too, is no longer with us. Let's see if you recognize it.

    It is sad that brilliant minds die. But it happens. And may you fall into an infinite trench of Fractal wonders.

    Mandelbrot has inspired many, and has inspired me to create Gravity Set Fractals.

    http://www.fredmitchell.net/fractals/index.html

    Long Live Self-Similarity!!!

  46. the best link I have.... by pinkwarhol · · Score: 1

    http://thinkorthwim.com/2010/02/12/mathematical-porn

    if you take the time to watch till the end, its worth your while....

  47. My humble contribution by ion_ · · Score: 1

    A manderbrot set renderer I happened to write a few years ago in dc(1):

    [lolssdsl0lqx]sx[1+lddd*lld*-ls+dsdrll2**lo+dsld*rd*+4<kd15>q]sq[q
    ]9ksk[d77/3*2-ss47lxx-P1+d78>0]s00[d23/.5-3*so0l0xr10P1+d24>u]dsux

    The output of the program in case you don't feel like running it yourself.

  48. R.I.P by gfody · · Score: 1

    Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line.

    --

    bite my glorious golden ass.
  49. Write your own by slim · · Score: 1

    I don't think you can fully appreciate the deep beauty of the Mandelbrot set until you've coded your own program to render it. Sure, once you've done it, use someone else's implementation -- it's sure to be faster, more flexible and have a nicer UI. But writing your own makes you understand the underlying maths.

    I wrote mine in Basic on a BBC Micro. I'd leave it overnight to render a full screen 320x256, 4bpp.

    Now it's a piece of cake in Processing or Processing.js, and renders pretty much instantly:
    http://processingjs.org/learning/topic/mandelbrot

    If you've not written a Mandelbrot renderer, I'd suggest either starting blind, or studying the example above, then rewriting it without looking at the original.

  50. R.I.P. by Anonymous Coward · · Score: 0

    I still vividly remember feverishly watching the first coarse outline of a Mandelbrot set becoming visible after a night of coding Turbo Pascal (as navigator - even though we didn't know that term, let alone paradigm, back then) and many awe filled hours on Xaos later on.

    CAPTCHA: laughed