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COBOL for Windows, Version 7.5, Language Reference


ACOS

The ACOS function returns a numeric value in radians that approximates the arccosine of the argument specified.

The function type is numeric.

Format
Read syntax diagramSkip visual syntax diagram>>-FUNCTION ACOS--(--argument-1--)-----------------------------><
 
argument-1
Must be class numeric. The value of argument-1 must be greater than or equal to -1 and less than or equal to +1.

The returned value is the approximation of the arccosine of the argument and is greater than or equal to zero and less than or equal to Pi.


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