Availability
This routine is available starting with katl-commons 2.5.
Syntax
sign(number)
Description
Determines the sign of a number (signum). Returns 1 if the number is positive, zero (0) if the number is 0, and -1 if the number is negative.
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| number | Number | Yes | Any real number. |
Return type
number
Example
number a = sign(3);
print("a= " + a);
number b = sign(-4);
print("b= " + b);
number c = sign(3-3);
print("b= " + c);
Prints:
a= 1;
b= -1;
c= 0;
See also