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Legato

GoFiler Legato Script Reference

 

Legato v 1.5b

Application v 5.24b

  

 

Chapter SevenMath Functions (continued)

ArcCosine Function

Overview

The ArcCosine (acos) function returns the principal value of the arc cosine of x expressed as an angle in radians, degrees or gradians.

Syntax/Parameters

Syntax

float = ArcCosine ( float x );

Parameters

x

A float containing a numeric source value. If x is not a float, the data will be converted to a 64-bit floating-point number.

Return Value

Returns a float containing the principal arc cosine of x in the interval [0,pi] in the default angle mode or #INF on failure. Use the GetLastError function to retrieve error information.

Remarks

In trigonometry, arc cosine is the inverse operation of cosine. The arc cosine of x is computed in the interval [-1,+1]. If the argument is out of this interval, the GetLastError function will return ERROR_OVERFLOW.

The default angle mode is radians where one radian is equivalent to 180/PI degrees. Use the SetAngleMode function to change the returned units.

Related Functions

Platform Support

Go13, Go16, GoFiler Complete, GoFiler Corporate, GoFiler, GoFiler Lite, GoXBRL

Legato IDE, Legato Basic