Math Class

Find square root of a number using Math.sqrt

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4 Comments

    • 1.
      /*
      2.
      Find square root of a number using Math.sqrt
      3.
      This java example shows how to find square root of a given number using
      4.
      sqrt method of Java Math class.
      5.
      */
      6.
      public class FindSquareRootExample {
      7.

      8.
      public static void main(String[] args) {
      9.

      10.
      /*
      11.
      * To find square root value of a number, use
      12.
      * static double sqrt(double d1) method Java Math class.
      13.
      */
      14.

      15.
      //returns square root of 9, i.e. 3
      16.
      System.out.println(Math.sqrt(9));
      17.

      18.
      //returns square root of 25.5
      19.
      System.out.println(Math.sqrt(25.5));
      20.
      }
      21.
      }
      22.

      23.
      /*
      24.
      Output would be
      25.
      3.0
      26.
      5.049752469181039
      27.
      */

    • Here is a website that explains the algorithm for calculating sqrt without a math library.

      homeschoolmath.net/teaching/square-root-algorithm.php

  • if i use the System.out.println(Math.sqrt(25.5)); but instead putting a Double where the 25.5 is, will it work? because it doesn’t work for me:S

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