sgn (FUN)¶

FUNCTION sgn : INT

This function will return the result of the signum function applied to input value \(x\):

\[\begin{split}\text{sgn}(x) = \begin{cases} -1 &\mbox{if } x < 0 \\0 &\mbox{if } x = 0 \\1 &\mbox{if } x > 0 \end{cases}\end{split}\]

InOut:

Scope	Name	Type	Comment
Return	`sgn`	`INT`
Input	`lr`	`LREAL`	input value \(x\)