how to estimate the phase parameter of a complex function?

Write the definition of a function signOf , which receives an integer parameter and returns a -1 if the param?

• Write the definition of a function signOf , which receives an integer parameter and returns a -1 if the parameter is negative, returns 0 if the parameter is 0 and returns 1 if the parameter is positive. So if the parameter's value is 7 or 803 or 141 the function returns 1. But if the parameter's value is -22 or -57, the function returns -1. And if the parameter's value is 0, the function returns 0.

• Answer:

  This is for python: def signOf (in_value): ....retval = 1 ....if in_value < 0: ........retval = -1 ....if in_value = 0: ........retval = 0 ....return retval