ACOS

Contents


acos returns its parameter's arc-cosine.

 

Syntax

   acos(num_exp)

 

Parameters

Element

Description

Restrictions

num_exp

Numeric Expression

-1 <= num_exp <= +1

Examples

   Y = acos(sqr(3)/2)

 

Description and Comments

This function returns the arc-cosine of the parameter expressed in the current angular mode.

acos is the inverse of the cos function.

The result is the Double type.

 

Associated Errors

Error

Description

ERMODE (10)

The parameter is not numeric.

ERTRIG (12)

The parameter is not in the [ -1 , +1 ] interval.

 

Associated Keywords

SIN  -  COS  - TAN  -  ASIN  -  ATAN  -  ATAN2  -  ANGLE


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