sign function
[SS] Fourier Transform of Signum
Signum function은 다음과 같음. $$ \text{sgn}(t)=\left\{\begin{matrix}1, & \text{ for } t \ge 0 \\ -1, & \text{ for } t
Signum function은 다음과 같음. $$ \text{sgn}(t)=\left\{\begin{matrix}1, & \text{ for } t \ge 0 \\ -1, & \text{ for } t