ACOS()

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Purpose

Function to calculate and return the angle size in radians for any given cosine value


Syntax

ACOS(<expN>)


See Also

ASIN(), ATAN(), ATN2(), COS(), DTOR(), EXP(), LOG(), LOG10(), PI(), RTOD(), SIN(), TAN(), SET DECIMALS, SET FIXED


Description

The ACOS() function calculates the angle size of a cosine value. The cosine value is represented by the numeric expression <expN>. The numeric expression must fall between -1.0 and +1.0 inclusive. The angle size is returned as a numeric in radians. The SET DECIMALS command determines the number of decimals displayed in the returned angle size.


Example

set decimal to 4
?acos(0.7071)
    0.7854
set decimals to 2
?rtod(acos(cos(dtor(30))))
     30.00


Products

Recital Server, Recital