// ef_java.java  elementary functions in Java
public class ef_java
{
  public ef_java()
  {
    double x, y, z;   // other numeric types must be cast to double
    
    System.out.println("elementary functions in java");
    x = 0.5;
    z = 0.5;

    y = Math.abs(x);
    y = Math.pow(x, z);
    y = Math.sqrt(x);
    y = Math.log(x);
    y = Math.sin(x);
    y = Math.cos(x);
    y = Math.tan(x);
    y = Math.asin(x);
    y = Math.acos(x);
    y = Math.atan(x);
    y = Math.atan2(x, z);
    // y = Math.sinh(x);
    // y = Math.cosh(x);
    // y = Math.tanh(x);
    // y = Math.asinh(x);
    // y = Math.acosh(x);
    // y = Math.atanh(x);


    System.out.println("ef_java.java no output expected");
  }
  
  public static void main (String[] args)
  {
    new ef_java();
  }
}