You know the rules of integration right? Imagine differentiating x^3. You get 3x^2.
Now reverse the differentiation.
So integrating 3x^2 you first increase the power and then divide by the new power. So...
1) Raise the power: 3x^3
2) Divide by the new power: \frac{3}{3}x^3 = x^3...
The software produces the correct waveforms, it actually glitches when using commas (try cos(2,0x)).
The waveform is what I expected, but it just doesn't match up with the mathematics which states it should equal zero.
It only equals zero if you take the limit from -\infty to \infty
Hello everyone, I've wandered PF a few times in the past but never thought I'd join, here I am, how exciting.
To keep it short I'm trying to understand the proof behind Fourier Series and can't quite get to grips with basic trigonometric orthogonality.
I understand that sin and cos are...