Here you can find the source of acos(double a)
Parameter | Description |
---|---|
a | the value whose arc cosine is to be returned. |
public static double acos(double a)
//package com.java2s; //License from project: Open Source License public class Main { /**/*from ww w . j a v a 2s .c o m*/ * Returns the arc cosine of an angle, in the range of 0.0 through <i>pi</i>. Special case: * * <ul> * <li> * If the argument is NaN or its absolute value is greater than 1, then the result is NaN. * </li> * </ul> * * <p> * A result must be within 1 ulp of the correctly rounded result. Results must be * semi-monotonic. * </p> * * @param a the value whose arc cosine is to be returned. * * @return the arc cosine of the argument. */ public static double acos(double a) { return Math.acos(a); } }