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Chapter 6. Core Syntax > Math.acos()

Math.acos()

JavaScript 1.0+, ECMAScript 1.0+, JScript 1.0+ Nav2+, NES2+, IE 3+, Opera3+ Syntax

							math.acos(num)
						

Description

The acos() method of the Math object is used to calculate the arccosine of a number. The return value is between 0 and PI and is measured in radians. If the return value is outside this range, 0 is returned.


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