Java - StrictMath cbrt(double) Method

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Description

The Java StrictMath cbrt(double a) returns the cube root of a double value. For positive finite x, cbrt(-x) == -cbrt(x); that is, the cube root of a negative value is the negative of the cube root of that value's magnitude. Special cases −

• If the argument is NaN, then the result is NaN.

• If the argument is infinite, then the result is an infinity with the same sign as the argument.

• If the argument is zero, then the result is a zero with the same sign as the argument.

The computed result must be within 1 ulp of the exact result.

Declaration

Following is the declaration for java.lang.StrictMath.cbrt() method

 public static double cbrt(double a) 

Parameters

a − a value.

Return Value

This method returns the cube root of a.

Exception

NA

Getting Cube Root of a Positive Number Example

The following example shows the usage of StrictMath cbrt() method.

 package com.tutorialspoint; public class StrictMathDemo { public static void main(String[] args) { // get a double number double x = 125; // print the cube root of the number System.out.println("StrictMath.cbrt(" + x + ")=" + StrictMath.cbrt(x)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 StrictMath.cbrt(125.0)=5.0 

Getting Cube Root of Zero Example

The following example shows the usage of StrictMath cbrt() method of zero value.

 package com.tutorialspoint; public class StrictMathDemo { public static void main(String[] args) { // get a double number double x = 0; // print the cube root of the number System.out.println("StrictMath.cbrt(" + x + ")=" + StrictMath.cbrt(x)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 StrictMath.cbrt(0.0)=0.0 

Getting Cube Root of a Negative Number Example

The following example shows the usage of StrictMath cbrt() method of a negative number.

 package com.tutorialspoint; public class StrictMathDemo { public static void main(String[] args) { // get a double number double x = -10; // print the cube root of the number System.out.println("StrictMath.cbrt(" + x + ")=" + StrictMath.cbrt(x)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 StrictMath.cbrt(-10.0)=-2.154434690031884