Recent content by QuantumPixel

Use the chain rule to show that dz/dx = (cos(theta) * dz/dr) - (1/r * sin(theta) dz/dtheta) and dz/dy = (sin(theta) dz/dr) + 1/r * cos(theta) dz/dtheta) where dz/dx, dz/dr, dz/dtheta, and dz/dy and first partial derivatives. Saw this a textbook the other day and I did not understand it.

Between the intervals of [-1,1] and 11 terms.

Hi! I was wondering how you would graph a Fourier series for a square wave that periodic. My textbook gave something proper that I would expect (just google 'Square Wave Fourier Series Expansion') while my TI - 84 gave a image like the one somewhere in this thread. It would be nice if anybody...

Thanks for your time on here! :-) -QuantumPixel

I was bored and decide to make a function (yes, i am a bit weird). So I came up with this: f(x)=2x+3 g(f)= f+2 w(g)=g2+3 x=2 f(2)=4+3 f(2)=7 g(7)=7+2 g(7)=9 w(9)=81+3 w(9)=82 Is those working outs correct or not? If it isn't could you tell me where i got it wrong?

Now i understand. Thanks for your time and contribution. -QuantumPixel

Why is Schrodinger's Cat entangled? Or is it not? I recently saw a poster on deviantart that said this: http://browse.deviantart.com/art/WANTED-Schrodinger-s-Cat-130508078 It said it was in a superposition, that i get, but the entanglement? That i don't get. -QuantumPixel