sign SciMax Toolbox similaritytransform

SciMax Toolbox >> signum

signum

Maxima Function

Calling Sequence

signum (x)

Description

For numeric x, returns 0 if x is 0, otherwise returns -1 or +1 as x is less than or greater than 0, respectively.

If x is not numeric then a simplified but equivalent form is returned. For example, signum(-x) gives -signum(x).

sign SciMax Toolbox similaritytransform