sign
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Availability
This routine is available starting with SIL Engine™ 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