def sign(self):
'''
Returns an element-wise indication of the sign of a number.
The sign function returns -1 if x < 0, 0 if x==0, 1 if x > 0. nan is returned for nan inputs.
'''
return MIArray(ArrayMath.sign(self.array))
def sign(self):
'''
Returns an element-wise indication of the sign of a number.
The sign function returns -1 if x < 0, 0 if x==0, 1 if x > 0. nan is returned for nan inputs.
'''
return MIArray(ArrayMath.sign(self.array))
