JAVA EE: Java Tutorial : Java Math class (Trigonometric methods)

Monday 22 February 2016

Java Tutorial : Java Math class (Trigonometric methods)

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Java Tutorial : Java Math class (Trigonometric methods)

MathDemo.java

public class MathDemo
{

    public static void main(String[] args)
    {

        double degrees = 25.0;
        double radians = Math.toRadians(degrees);

        System.out.format("The value of pi " + "is %.4f%n", Math.PI);

        System.out.format("The sine of %.1f " + "degrees is %.4f%n",
                degrees, Math.sin(radians));

        System.out.format(
                "The cosine of %.1f " + "degrees is %.4f%n", degrees,
                Math.cos(radians));

        System.out.format("The tangent of %.1f "
                + "degrees is %.4f%n", degrees, Math.tan(radians));

        System.out.format("The arcsine of %.4f "
                + "is %.4f degrees %n", Math.sin(radians),
                Math.toDegrees(Math.asin(Math.sin(radians))));

        System.out.format("The arccosine of %.4f "
                + "is %.4f degrees %n", Math.cos(radians),
                Math.toDegrees(Math.acos(Math.cos(radians))));

        System.out.format("The arctangent of %.4f "
                + "is %.4f degrees %n", Math.tan(radians),
                Math.toDegrees(Math.atan(Math.tan(radians))));
    }
}

Output

The value of pi is 3.1416
The sine of 25.0 degrees is 0.4226
The cosine of 25.0 degrees is 0.9063
The tangent of 25.0 degrees is 0.4663
The arcsine of 0.4226 is 25.0000 degrees 
The arccosine of 0.9063 is 25.0000 degrees 
The arctangent of 0.4663 is 25.0000 degrees