- #1

- 948

- 2

## Main Question or Discussion Point

[itex] e^{ix}=cos(x)+isin(x) [/itex]

Simple enough?

Well I am biting my head off because I don't know how he did it.

Why is this bothering me?

e

I want to know this so badly.

Why is this bothering me, further?

Because I am doing signal analysis and everything, from complex exponential LTI response to Fourier analysis is based on this 2 inch formula.

:(

Simple enough?

Well I am biting my head off because I don't know how he did it.

Why is this bothering me?

e

^{x}is not a periodic function. How in the world magic happens when you put an i into exponent, and it gets periodic.I want to know this so badly.

Why is this bothering me, further?

Because I am doing signal analysis and everything, from complex exponential LTI response to Fourier analysis is based on this 2 inch formula.

:(