Difference between revisions of "CoCoA:Sign"
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Latest revision as of 10:02, 24 October 2007
Sign
the sign of a number
Description
This function returns -1 if X < 0, 0 if X = 0, and 1 if X > 0.
X must be INT or RAT.
Example
Sign(123); 1 ------------------------------- Sign(-5/2); -1
Syntax
Sign(X:INT of RAT):INT
