Java acos () method

Java Number classes

acos () method returns the type parameter to specify double inverse cosine.

grammar

double acos(double d)

parameter

• d - any native data types.

return value

Returns the double value of the type parameter of the inverse cosine.

Examples

public class Test{
	public static void main(String args[]){

		double degrees = 45.0;
		double radians = Math.toRadians(degrees);

		System.out.format("pi 的值为 %.4f%n", Math.PI);
		System.out.format("%.4f 的反余弦值为 %.4f 度 %n", Math.cos(radians), Math.toDegrees(Math.acos(Math.sin(radians))));

	}
}

Compile the above program, the output is:

pi 的值为 3.1416
0.7071 的反余弦值为 45.0000 度 

Java Number classes