Math.PI : Math « java.lang « Java by API

Math.PI

  
/*
 * Output:
 
cos = 0.9999691576447897

 */
public class MainClass {
  public static void main(String args[]) {
    double radians = 0.45 * Math.PI/180;
    System.out.println("cos = " + Math.cos(radians));
     
  }
}

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