Re: confused on Figure 1.6 implementation of Xor gate

Posted by Erik on
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/confused-on-Figure-1-6-implementation-of-Xor-gate-tp3706181p3706786.html

Thanks for the reply!

OK, so here is where I am confused:

Based on the chapter, I got the following canonical representation of the function:

f(a,b) = Not(a)b + aNot(b)

Assuming that is right, I am not quite sure how that goes to the Figure 1.6 graph. It seems like it must be using some mathematical equivalence expansion to use the And and Or's, but I am not getting why or how.

Also, the w's are really throwing me off.

I apologize if I am being dense.