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34 lines
643 B
Markdown
34 lines
643 B
Markdown
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The **SGN** function returns the sign of a number value.
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## Syntax
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> sign% = SGN(value)
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* Returns -1 when a sign is negative, 0 when a value is zero, or 1 when a value is positive.
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* Function is used to store the original sign of a number.
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* **QB64** allows programs to return only [_UNSIGNED](_UNSIGNED) variable values using a [_DEFINE](_DEFINE) statement.
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## Example(s)
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Checking and changing negative values to positive ones.
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```vb
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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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```
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```text
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100
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```
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## See Also
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* [ABS](ABS)
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* [_DEFINE](_DEFINE), [_UNSIGNED](_UNSIGNED)
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* [Mathematical Operations](Mathematical-Operations)
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