SGN
(Function)
Checks a sign.
SGN (<Expression>)
This statement checks the sign of <Expression> and returns the following numeric value.
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If positive
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1
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If 0
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0
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If negative
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-1
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DEFSNG lf1, lf2
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lf2 = SGN (lf1)
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'Returns the sign of the real variable lf1.
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