View source for Signals and systems/Sinusoidal signals

<math>x(t)=A*cos(b*t+c)</math><br>
where <math>A</math> - amplitude<br>
<math>b=\frac{2\pi}{T}</math>; <math>T</math> - period<br>
<math>c</math>- phase
[[File:Sine cosine one period.svg|none|frame]]


cosine - is an even function <math>x(t) = x(-t)</math><br>
sine - is an odd function <math>x(t) = -x(-t)</math><br>

sine function possible to flip horizontally and then flip vertically, as result -same function and plot

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