RealSign

RealSign(x)

gives -1, 0 or 1 depending on whether x is negative, zero or positive. For complex number arguments the function will be left unevaluated.

See

• Wikipedia - Sign function

Examples

>> RealSign(-2.5)
-1

>> RealSign(-Infinity)
-1

Implementation status

• ✅ - full supported

Github

• Implementation of RealSign