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The title of the book is "Ultimate Electronics: Practical Circuit Design and Analysis", not "Basic Electronics".

The introduction to the book says, "undergraduate-level university course in electronics analysis and design", not "undergraduate basic electronics course".

In the introduction, the prerequisites are "Existing experience in calculus, linear algebra, differential equations, and classical physics (including thermodynamics, electricity, and magnetism) is recommended."

So I recommend changing the Slashdot article's title from "Basic Electronics Textbook" to "Circuit Design and Analysis Textbook".

I'm an Electrical Engineer and I don't have a clue what Large Asymptotic Approximation is. After reading the chapter here I can say that yes these techniques are used, but generally on fairly complex or advanced circuits, usually containing active elements.

Such approximations are necessary when a full closed-form solution is prohibitively complicated and the error in the approximation is sufficiently small. So yeah, definitely not an introductory technique.

These might be useful:
https://www.circuitlab.com/
http://www.falstad.com/circuit/

Its pretty cool, although limited.

I checked it out and there's a pretty limited selection of BJTs, etc. Well I poked around and it turns out you can do something pretty cool with just a couple parts, with any luck here's a differential amp, assuming this link works:

https://www.circuitlab.com/circuit/fby849/bjt-cascoded-active-load-differential-amplifier-with-cmfb/

My guess is they'll soon be releasing a "paid" version where I can use thousands of (official?) transistor models not just 10 or so. That would be pretty awesome.

Also if they know what they're doing they'll partner with a short run PCB house. Some PCB houses give away PCB CAD software, these guys have a jump ahead of them... Maybe they already have, I have not explored the entire site. Imagine doing the schematic, the spice run, the pcb layout, and order some boards (and parts?) from the same browser window... that would be cool. Heck partner with those "virtual front panel" guys too.

If you double click on a component you can change the parameters, I think I could design a nifty little MMIC active constant current biasing circuit by hacking a rectifier model into a psuedo-mmic model (basically crank the forward V drop to 3 volts or so, depending on device, and a couple other things especially device capacitance). I wonder if I can push it into oscillation? (Note, you try to design ckts that don't do that... at least if they're theoretically amplifiers) Or get it to ring into a negative voltage at the amp input by doing stupid inductor tricks (this is why you don't use MMICs at HF freqs, aside from oscillation and usually intentional device gain rolloff)

I'd like to see the ability to handle temperature swings. My parts are milspec individually, but does my overall design work over a whole milspec temp range?

I suppose if I'm asking for the moon, could I have something like Ansoft for waveguide foolishness in my browser window?