Info This is what we might call a "proof by rearrangement" of the famous Pythagorean theorem. I know it is not fancy at first sight. The "WoW" only comes after we look at the animation for a dozen times. In Mathematics beauty is strongly connected to simplicity and for me this is a very elegant proof of the theorem. Created and nominated by Alvesgaspar --Alvesgaspar20:57, 30 September 2007 (UTC)[reply]
Comment Nice and useful. May I just suggest you to change the fonts ? Usually in mathematics, variables are written in italic (I would personnally use Times New Roman italic). Benh21:30, 30 September 2007 (UTC)[reply]
It may not improve it, in a FP scope, but it won't spoil it. I believe this is the kind of small details which turn something good into a great one. Convention are useful is everyone use them. When I come across a piece of software code, I can easily identify a variable i or j as a counter. This saves a lot of time. Same applies in scientific reports. I hope this draw will be seen by a lot of people. It's beautiful, it's didactic, and when they take this as an example, they will remember when writing a report "this is a variable, I'd better write it in italic". I hope you don't take my comment as an offense. I really appreciate what you do, and just hope it helps to slightly improve it. Benh21:11, 1 October 2007 (UTC)[reply]
I agree fully with Benh that using a serif based font in italic like Times New Roman is the optimal solution. The sans serif font used is unconventional for math symbols. -- Slaunger07:28, 2 October 2007 (UTC)[reply]
Support If you make any changes, one small thing to add is to label a second side 'c' on the image that first shows area=c2, and perhaps both 'c' labels on the outside of the square --Tony Wills07:21, 1 October 2007 (UTC)[reply]
Info The side of the small square is equal to (b-a) and its area, (b-a)2. The area of the large square will then be c 2 = 4 x (a x b) / 2 + (b - a) 2 = a2 + b2, Q.E.D. :)) - Alvesgaspar09:52, 1 October 2007 (UTC)[reply]
Support This has definitely a "WOW effect" after you see the animation for the first time and understand it. Should be the POTY (Picture of the Year) 2008 animation. Freedom to share16:05, 1 October 2007 (UTC)[reply]
Question I find it takes some time to understand what is going on (even though I have a physics degree!) I think it's the way that areas jump unexpectedly across the figure from one side to the other. Would it be possible for them to slide, or for arrows to be used or something to show what's moving where? --MichaelMaggs16:46, 1 October 2007 (UTC)[reply]
Support I like this one better than the alternative, things don't really "slide" so much as violently jerk in animated gifs. I never knew how Pythagoras came up with this proof but after watching this two times it's crystal clear. Calibas03:28, 2 October 2007 (UTC)[reply]
Support -- Actually I don't know which version to support. This one seems to be slightly easier to understand after viewing the animation only a few times. Shushruth06:07, 2 October 2007 (UTC)[reply]
Support -- Slaunger 07:31, 2 October 2007 (UTC) I think this is the best animation. I wish that font was an italic serif one though (e.g., Times New Roman) as Benh also suggest. It would just give it that last touch of professionalism. -- Slaunger07:31, 2 October 2007 (UTC)[reply]
Support Of course :) One last thing (sorry to bother !!) "area" shouldn't be in italic here, it's not a variable. Benh11:12, 2 October 2007 (UTC)[reply]
Support Although I always feel a bit stressed by all gif animations that try to explain something in many steps. What I would really like to have something where you clicked next to see the next stage. /Daniel7818:44, 2 October 2007 (UTC)[reply]