Why just webmail? There are several open source web applications with ajaxified interfaces. Feed readers, calendars, you name it. Gregarius is exactly like roundcube and simply does to your feeds/news what roundcube does for email.
It looks like all that is being done is removing squareroots and negative numbers.
quadrance is the square of the distance spread is the square of the sin angle
If you want to teach trig this way, it will certainly be easier to learn. But then, your students will not appreciate or understand square roots and negative numbers.
It is highly unlikely to lead to any revolutionary new algorithms. It appears that you are changing an angle to something rational, because all most of the popular sine values have square roots in them. However do not be fooled by this, it is just as hard to calculate spread as it is to calculate the sine of an angle. (except in a few cases).
This is not specific to Firefox and Opera. One can use Applescript to make Safari to run Javascript on webpages. From http://www.apple.com/applescript/safari/ we have
Safari now includes a do JavaScript command that enables AppleScript to communicate with the browser via JavaScript!
I was asked similar questions on separate occasions (a total of 4 questions) and the correct answers were always none of the above. Seemed a little strange to me.
You are right when you say that if you look at enough of the signal you can find the pattern. But that is what public key cryptography is all about. If public key crpytography is properly implemented NO MATTER how much you look at the encrypted signal the time you require to "find a pattern" could be made to be decades and centuries. The devil is in the implemtation.
The problem with the earlier WEP protocol was that they used a 24 bit IV key which they transmitted in plaintext along with the rest of the key. Some of these IV keys were cryptographically "weak". This is just poor implementation and many cards and AP's had updates to prevent them from using these weak IV keys. (making the old protocol much more secure)
Maybe the new protocol will have some flaw that will render it crackable. But that just will mean poor implementaion of "practically uncrackable" cryptosystems. Any who is to say an update wont be able to take care of that.
Since we are bashing AT&T, I recently tried to change my cell phone provider to Cingular and when I called AT&T to find out when my contract expires, they told me I had a two year contract and it does not expire for another 10 months. I argued with them for a little while and then gave up. So I had to dig out the paperwork and check and then call back. *THEN* they very conveniently tell me that they never got a copy of my contract, so they dont know when it expires. Nice work At&T. You just lost a customer.
A similar thing happenned to a friend of mine when she called up to find out when her contract expired.
Even if you purchased a powerbook G4 a few weeks earlier you have some chance of qualifying. Check out this link I bought my powerbook on Sept 16th and I didnt qualify at first but when I tried a couple of days later it worked like magic.
Where Performance is Concerned, Optimization is Key
When our Hitchhiker's Guide to the Mainframe article caught the attention of Slashdot last month, quite a few people were curious to know about how our server handled the traffic. This is a topic we have discussed previously in Building a Better Webserver in the 21st Century and SPECmine - A Case Study on Optimization, but since there was so much interest in some more in-depth information on the topic, I decided to spend some time explaining how the data object caching in our web application can do so much for performance without sacrificing the ability to serve true dynamic content. I'll start with some statistics gathered on December 4th.
Our traffic for the day totaled over 590,000 requests (hits), with over 250,000 of those being requests for pages. Requests peaked at 677 per minute, which of course includes everything (images, pages, files, etc.). The peak number strictly for article pages was 235 per minute. Perhaps the most impressive statistic is that during these peaks, our web application running in Java (including the HTTP server) was only consuming 20% of available CPU time, and all article requests were served in 4 milliseconds or less. Furthermore, our database was only at 7.5% CPU utilization. So, when the system was serving roughly 11 requests per second, the CPU was nearly 75% idle. Let's take a look at the traffic for the day, graphed on a per-minute basis:
In the graph above, we have two different sets of data. The first is requests, which is essentially anything requested from the server -- images, dynamic pages, static pages, etc. The second is article pages, like this one. As you can see, the initial spike in traffic from Slashdot occurs around 1:30 AM. There is other dynamic content, such as the front page or the message board, that is not accounted for in this data, but nevertheless, the graph gives you a good idea of the ratio between article pages (text) and everything else. Traditionally, dynamic content is often one of the most intensive types of content for a webserver, but as you will see in the next graph, that doesn't always have to be the case.
In this graph we see the CPU utilization of both the Java web application and the database, sampled each minute, relative to the article requests per minute. Here you can clearly see the peaks I mentioned earlier happening roughly between 9:30 and 10:00 AM. You can also see that the average CPU utilization of both the web application and the database is rather low: 14% for Java and 6.9% for the database. The Java CPU utilization peaks at 51% for a very short time early on, as it is caching content on demand as traffic begins to spike. You can also see occasional spikes in the database CPU utilization, as cached data is periodically updated. When you consider that there are servers out there that will fall over and die when faced with this kind of traffic, an overall average CPU utilization of 21% for a modest 550 MHz uniprocessor machine is not too shabby. Advertisement:
Overview
Before we begin, let's take a quick look at what's covered in this review:
* Page 1: Introduction
* Page 2: Scaling with Larger Workloads Effectively
* Page 3: Inside the Web Server Application
* Page 4: Benchmarking with ApacheBench
* Page 5: Benchmarking Web Server Scalability with AutoBench
* Page 6: Static HTTP Performance
* Page 7: Dynamic Cached vs Uncached Article Performance and Conclusion
Let's start by considering some of the bottlenecks present in many web servers and how to manage them...
Slashdot Mirror
Why just webmail? There are several open source web applications with ajaxified interfaces. Feed readers, calendars, you name it. Gregarius is exactly like roundcube and simply does to your feeds/news what roundcube does for email.
It looks like all that is being done is removing squareroots and negative numbers.
quadrance is the square of the distance
spread is the square of the sin angle
If you want to teach trig this way, it will certainly be easier to learn. But then, your students will not appreciate or understand square roots and negative numbers.
It is highly unlikely to lead to any revolutionary new algorithms. It appears that you are changing an angle to something rational, because all most of the popular sine values have square roots in them. However do not be fooled by this, it is just as hard to calculate spread as it is to calculate the sine of an angle. (except in a few cases).
Spread is NOT proportionally equal to an angle. 30 degrees is 1/4 and 60 degrees is 3/4
spread is the square of the sine of an angle.
Browsing using its "Advanced Tools" and looking under Window's Shell Execute Hooks you find an !! next to Microsoft.AntiSpyware.ShellExecuteHook.1
The !! means that it is unknown to the program. It is pretty funny that the program cannot recognise itself.
Relax it is beta software.
I was asked similar questions on separate occasions (a total of 4 questions) and the correct answers were always none of the above. Seemed a little strange to me.
It will just push us from depending on the oil rich countries to the uranium rich countries.
like Bourbaki for Mathematics. http://en.wikipedia.org/wiki/Nicolas_Bourbaki
You are right when you say that if you look at enough of the signal you can find the pattern. But that is what public key cryptography is all about. If public key crpytography is properly implemented NO MATTER how much you look at the encrypted signal the time you require to "find a pattern" could be made to be decades and centuries. The devil is in the implemtation.
The problem with the earlier WEP protocol was that they used a 24 bit IV key which they transmitted in plaintext along with the rest of the key. Some of these IV keys were cryptographically "weak". This is just poor implementation and many cards and AP's had updates to prevent them from using these weak IV keys. (making the old protocol much more secure)
Maybe the new protocol will have some flaw that will render it crackable. But that just will mean poor implementaion of "practically uncrackable" cryptosystems. Any who is to say an update wont be able to take care of that.
Any one tried compiling DeDRMS with this? Any success?
http://www.uchicago.edu/docs/mp-site/construction/ ratner/rat-eleva.html
Extrapolating from the size of the human figure in the model, I would say about 40 feet.
Ratner looks like a boat stuck inland.
How is the parent offtopic? Modertors?!!
Since we are bashing AT&T, I recently tried to change my cell phone provider to Cingular and when I called AT&T to find out when my contract expires, they told me I had a two year contract and it does not expire for another 10 months. I argued with them for a little while and then gave up. So I had to dig out the paperwork and check and then call back. *THEN* they very conveniently tell me that they never got a copy of my contract, so they dont know when it expires. Nice work At&T. You just lost a customer.
A similar thing happenned to a friend of mine when she called up to find out when her contract expired.
Are you saying that you are not sane? LOL. Because you just did.
This has got to be good news for anyone dying to get a g5 Powerbook. Please please apple can I have one for christmas.
Even if you purchased a powerbook G4 a few weeks earlier you have some chance of qualifying. Check out this link I bought my powerbook on Sept 16th and I didnt qualify at first but when I tried a couple of days later it worked like magic.
Was that the poll that asked whether you are using Windows/linux/unix/Mac/TacoOS? You take that seriously?
Where Performance is Concerned, Optimization is Key
When our Hitchhiker's Guide to the Mainframe article caught the attention of Slashdot last month, quite a few people were curious to know about how our server handled the traffic. This is a topic we have discussed previously in Building a Better Webserver in the 21st Century and SPECmine - A Case Study on Optimization, but since there was so much interest in some more in-depth information on the topic, I decided to spend some time explaining how the data object caching in our web application can do so much for performance without sacrificing the ability to serve true dynamic content. I'll start with some statistics gathered on December 4th.
Our traffic for the day totaled over 590,000 requests (hits), with over 250,000 of those being requests for pages. Requests peaked at 677 per minute, which of course includes everything (images, pages, files, etc.). The peak number strictly for article pages was 235 per minute. Perhaps the most impressive statistic is that during these peaks, our web application running in Java (including the HTTP server) was only consuming 20% of available CPU time, and all article requests were served in 4 milliseconds or less. Furthermore, our database was only at 7.5% CPU utilization. So, when the system was serving roughly 11 requests per second, the CPU was nearly 75% idle. Let's take a look at the traffic for the day, graphed on a per-minute basis:
In the graph above, we have two different sets of data. The first is requests, which is essentially anything requested from the server -- images, dynamic pages, static pages, etc. The second is article pages, like this one. As you can see, the initial spike in traffic from Slashdot occurs around 1:30 AM. There is other dynamic content, such as the front page or the message board, that is not accounted for in this data, but nevertheless, the graph gives you a good idea of the ratio between article pages (text) and everything else. Traditionally, dynamic content is often one of the most intensive types of content for a webserver, but as you will see in the next graph, that doesn't always have to be the case.
In this graph we see the CPU utilization of both the Java web application and the database, sampled each minute, relative to the article requests per minute. Here you can clearly see the peaks I mentioned earlier happening roughly between 9:30 and 10:00 AM. You can also see that the average CPU utilization of both the web application and the database is rather low: 14% for Java and 6.9% for the database. The Java CPU utilization peaks at 51% for a very short time early on, as it is caching content on demand as traffic begins to spike. You can also see occasional spikes in the database CPU utilization, as cached data is periodically updated. When you consider that there are servers out there that will fall over and die when faced with this kind of traffic, an overall average CPU utilization of 21% for a modest 550 MHz uniprocessor machine is not too shabby.
Advertisement:
Overview
Before we begin, let's take a quick look at what's covered in this review:
* Page 1: Introduction
* Page 2: Scaling with Larger Workloads Effectively
* Page 3: Inside the Web Server Application
* Page 4: Benchmarking with ApacheBench
* Page 5: Benchmarking Web Server Scalability with AutoBench
* Page 6: Static HTTP Performance
* Page 7: Dynamic Cached vs Uncached Article Performance and Conclusion
Let's start by considering some of the bottlenecks present in many web servers and how to manage them...
Thats not true. I use mp3's in my portable mp3player even when it is very very far away from my computer.
:wq
I wonder if its possible to slashdot Slashdot. Now that google has fallen its time to go for the ultimate.
here.
Corrected link
If a space appears between music and download delete it. Why is slashdot mucking up URLs in text mode?
Corrected Link
s ic download.asp
http://www.soundbuzz.com/partners/indiatimes/mu
Sorry
Take a look ats ic download.asp"
http://www.soundbuzz.com/partners/indiatimes/mu
Tell me what you would buy for 20 cents.
The entire CD for music like this would retail for something like $3 or $4. 20 cents per song seems reasonable.