Question

How to use acos() function to get the arc cosine value of N in Java

Answer 1

package javaapplication1;

public class JavaApplication1 {
 
    public static void main(String[] args) {
        
        System.out.format("Math.acos(0) = %f\n", Math.acos(0));
        System.out.format("Math.acos(-1) = %f\n", Math.acos(-1));
        System.out.format("Math.acos(1) = %f\n", Math.acos(1));
        System.out.format("Math.acos(0.5) = %f\n", Math.acos(0.5));
        System.out.format("Math.acos(45) = %f\n", Math.acos(45));
    }
}
 
/*
run:

Math.acos(0) = 1.570796
Math.acos(-1) = 3.141593
Math.acos(1) = 0.000000
Math.acos(0.5) = 1.047198
Math.acos(45) = NaN
 
*/

 

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