Find square root of a number using Math.sqrt : Math Functions « Development « Java Tutorial

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Java Tutorial » Development » Math Functions

6. 17. 18. Find square root of a number using Math.sqrt


public class Main {

  public static void main(String[] args) {

    // returns square root of 9, i.e. 3

    System.out.println(Math.sqrt(9));

    // returns square root of 25.5

    System.out.println(Math.sqrt(25.5));

  }

}

6. 17. Math Functions
	6. 17. 1.	Math Class Methods
	6. 17. 2.	Use math functions
	6. 17. 3.	Testing the Math class methods
	6. 17. 4.	Floating Point Number Enhancements in JDK 6
	6. 17. 5.	Math.scalb
	6. 17. 6.	Math.getExponent
	6. 17. 7.	Math.nextAfter
	6. 17. 8.	Math.nextUp
	6. 17. 9.	Math.copySign
	6. 17. 10.	Demonstrate toDegrees() and toRadians().
	6. 17. 11.	Find absolute value of float, int, double and long using Math.abs
	6. 17. 12.	Find ceiling value of a number using Math.ceil
	6. 17. 13.	Find exponential value of a number using Math.exp
	6. 17. 14.	Find floor value of a number using Math.floor
	6. 17. 15.	Find maximum of two numbers using Math.max
	6. 17. 16.	Find natural logarithm value of a number using Math.log
	6. 17. 17.	Find power using Math.pow
	6. 17. 18.	Find square root of a number using Math.sqrt
	6. 17. 19.	Round Java float and double numbers using Math.round
	6. 17. 20.	Math.min
	6. 17. 21.	Normalizes an angle to a relative angle.
	6. 17. 22.	Normalizes an angle to an absolute angle.
	6. 17. 23.	Normalizes an angle to be near an absolute angle
	6. 17. 24.	Calculate the floor of the log, base 2
	6. 17. 25.	Greatest Common Divisor (GCD) of positive integer numbers
	6. 17. 26.	Least Common Multiple (LCM) of two strictly positive integer numbers
	6. 17. 27.	Moving Average
	6. 17. 28.	Normalize an angle in a 2&pi wide interval around a center value.
	6. 17. 29.	Returns n!. Shorthand for n Factorial, the product of the numbers 1,...,n as a double.
	6. 17. 30.	Returns n!. Shorthand for n Factorial, the product of the numbers 1,...,n.
	6. 17. 31.	Returns the hyperbolic cosine of x.
	6. 17. 32.	Returns the hyperbolic sine of x.
	6. 17. 33.	Returns the natural log of the (http://mathworld.wolfram.com/BinomialCoefficient.html) Binomial Coefficient
	6. 17. 34.	Returns the natural logarithm of n!.
	6. 17. 35.	Round the given value to the specified number of decimal places. The value is rounded using the BigDecimal.ROUND_HALF_UP method.
	6. 17. 36.	Value is rounded using the given method which is any method defined in BigDecimal
	6. 17. 37.	sqrt(a^2 + b^2) without under/overflow

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