Difference between revisions of "SGN"

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* Returns 1 when a value is positive.
 
* Returns 1 when a value is positive.
 
* Used to hold the original sign of a number.
 
* Used to hold the original sign of a number.
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''Example:'' Checking and changing negative values to positive ones.
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: n = -100
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: IF SGN(n) = -1 THEN n = [[ABS]](n)
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: PRINT n
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 +
''Screen result:'' 100
 +
  
  

Revision as of 03:51, 25 September 2009

The SGN function returns the sign of a number value.


Syntax: sign% = SGN(value)


  • Returns -1 when a sign is negative.
  • Returns 0 when a value is zero.
  • Returns 1 when a value is positive.
  • Used to hold the original sign of a number.


Example: Checking and changing negative values to positive ones.

n = -100
IF SGN(n) = -1 THEN n = ABS(n)
PRINT n

Screen result: 100


See also: ABS


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