Programming instructions

Intermec Fingerprint v7.61 – Programmer’s Reference Manual Ed. 7 241
Chapter 2 Program Instructions
SGN
Field of Application Function returning the sign (positive, zero, or negative) of a specifi ed
numeric expression.
Syntax SGN(<nexp>)
<nexp> is the numeric expression from which the sign will be
returned.
Remarks
The sign will be returned in this form:
SGN(<nexp>) = -1 (negative)
SGN(<nexp>) = 0 (zero)
SGN(<nexp>) = 1 (positive)
Examples Positive numeric expression:
10 A%=(5+5)
20 PRINT SGN(A%)
RUN
yields:
1
Negative numeric expression:
10 A%=(5-10)
20 PRINT SGN(A%)
RUN
yields:
-1
Zero numeric expression:
10 A%=(5-5)
20 PRINT SGN(A%)
RUN
yields:
0