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My BASIC Notes

SGN()
Abbreviation: S <SHIFT+G>

TYPE: Integer Function
FORMAT: SGN (<numeric>)

Action: SGN gives you an integer value depending upon the sign of the <numeric> argument. If the argument is positive the result is 1, if zero the result is also 0, if negative the result is -1.

EXAMPLE of SGN Function:

90 ON SGN(DV)+2 GOTO 100, 200, 300
(jump to 100 if DV=negative, 200 if DV=0, 300 if DV=positive)