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JavaScript: The Definitive Guide

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Math.acos() Function

Name

Math.acos() Function---compute an arc cosine

Availability

Navigator 2.0, Internet Explorer 3.0

Synopsis

Math.acos(x)

Arguments

x

A number or numeric expression between -1.0 and 1.0.

Returns

The arc cosine, in radians, of the specified value x.

Description

Math.acos() computes and returns the arc cosine, or inverse cosine of the specified argument. The argument must be a value between -1.0 and 1.0. The return value is between 0 and pi radians.

See Also

"Math", "Math.asin()", "Math.tan()", "Math.cos()"


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