Remote Processing BASIC 52 - Manual (Page 118)

RPBASIC-52 PROGRAMMING GUIDE
2-99
SGN
Syntax: S G N (expr)
Function: Returns +1 if expr is greater than zero, zero if the expr equals zero, and -1 if expr is less than zero.
Mode: Comm and, run
Use: PRINT SGN(S IN(X)))
Cards: All
D E S C R IP T I ON
Use SG N in level con trol applications. If a level is high or low, it can direct co ntrol to the appropriate
p ro g ra m .
EXAMPLE
100 ON SGN(A)+1 GOSUB 2000,3000,4000