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Text lesson

acos()

Example

Provide the arccosine of various numbers.

System.out.println(Math.acos(0.64));
System.out.println(Math.acos(-0.4));
System.out.println(Math.acos(0));
System.out.println(Math.acos(1));
System.out.println(Math.acos(-1));
System.out.println(Math.acos(2))

Definition and Usage

The acos() method computes the arc cosine of a number.

Hint: The result of acos(-1) yields the value of π.

Syntax

public static double abs(double number)

Parameter Values

Parameter

Description

number

Mandatory. A number within the range of -1 to 1, for which the arc cosine is to be calculated. If the value falls outside this range, it returns NaN (Not a Number).

Technical Details

Returns:

A double value that represents the arc cosine of a number.

 

 

 

 

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