Java Math class

Java Math class provides several methods to work on math calculations like min(), max(), avg(), sin(), cos(), tan(), round(), ceil(), floor(), abs() etc.

Unlike some of the StrictMath class numeric methods, all implementations of the equivalent function of Math class can’t define to return the bit-for-bit same results. This relaxation permits implementation with better-performance where strict reproducibility is not required.

If the size is int or long and the results overflow the range of value, the methods addExact(), subtractExact(), multiplyExact(), and toIntExact() throw an ArithmeticException.

For other arithmetic operations like increment, decrement, divide, absolute value, and negation overflow occur only with a specific minimum or maximum value. It should be checked against the maximum and minimum value as appropriate.

Example 1

public class JavaMathExample1    
{    
    public static void main(String[] args)     
    {    
        double x = 28;    
        double y = 4;    
          
        // return the maximum of two numbers  
        System.out.println("Maximum number of x and y is: " +Math.max(x, y));   
          
        // return the square root of y   
        System.out.println("Square root of y is: " + Math.sqrt(y));   
          
        //returns 28 power of 4 i.e. 28*28*28*28    
        System.out.println("Power of x and y is: " + Math.pow(x, y));      
  
        // return the logarithm of given value       
        System.out.println("Logarithm of x is: " + Math.log(x));   
        System.out.println("Logarithm of y is: " + Math.log(y));  
          
        // return the logarithm of given value when base is 10      
        System.out.println("log10 of x is: " + Math.log10(x));   
        System.out.println("log10 of y is: " + Math.log10(y));    
          
        // return the log of x + 1  
        System.out.println("log1p of x is: " +Math.log1p(x));    
  
        // return a power of 2    
        System.out.println("exp of a is: " +Math.exp(x));    
          
        // return (a power of 2)-1  
        System.out.println("expm1 of a is: " +Math.expm1(x));  
    }    
}

Output:

Maximum number of x and y is: 28.0
Square root of y is: 2.0
Power of x and y is: 614656.0
Logarithm of x is: 3.332204510175204
Logarithm of y is: 1.3862943611198906
log10 of x is: 1.4471580313422192
log10 of y is: 0.6020599913279624
log1p of x is: 3.367295829986474
exp of a is: 1.446257064291475E12
expm1 of a is: 1.446257064290475E12

Example 2

public class JavaMathExample2    
{    
    public static void main(String[] args)     
    {    
        double a = 30;    
          
        // converting values to radian    
        double b = Math.toRadians(a);   
          
        // return the trigonometric sine of a      
        System.out.println("Sine value of a is: " +Math.sin(a));    
          
        // return the trigonometric cosine value of a  
        System.out.println("Cosine value of a is: " +Math.cos(a));  
          
        // return the trigonometric tangent value of a  
        System.out.println("Tangent value of a is: " +Math.tan(a));  
          
        // return the trigonometric arc sine of a      
        System.out.println("Sine value of a is: " +Math.asin(a));    
          
        // return the trigonometric arc cosine value of a  
        System.out.println("Cosine value of a is: " +Math.acos(a));  
          
        // return the trigonometric arc tangent value of a  
        System.out.println("Tangent value of a is: " +Math.atan(a));  
  
        // return the hyperbolic sine of a      
        System.out.println("Sine value of a is: " +Math.sinh(a));    
          
        // return the hyperbolic cosine value of a  
        System.out.println("Cosine value of a is: " +Math.cosh(a));  
          
        // return the hyperbolic tangent value of a  
        System.out.println("Tangent value of a is: " +Math.tanh(a));  
    }    
}

Output:

Sine value of a is: -0.9880316240928618
Cosine value of a is: 0.15425144988758405
Tangent value of a is: -6.405331196646276
Sine value of a is: NaN
Cosine value of a is: NaN
Tangent value of a is: 1.5374753309166493
Sine value of a is: 5.343237290762231E12
Cosine value of a is: 5.343237290762231E12
Tangent value of a is: 1.0

Java Math Methods

The java.lang.Math class contains various methods for performing basic numeric operations such as the logarithm, cube root, and trigonometric functions etc. The various java math methods are as follows:

Basic Math methods

Logarithmic Math Methods

Trigonometric Math Methods

Hyperbolic Math Methods

Angular Math Methods