Java Epsilon epsilonFloor(double d)

Description

protect the floor function from the vagaries of floating point precision.

License

Open Source License

Parameter

Parameter	Description
d	the double that we would like the floor value for

Return

the floor after adding epsilon

Declaration

public static double epsilonFloor(double d) 

Method Source Code

//package com.java2s;
/*// w  ww.  j  av  a2s  .c o m
 * Copyright 2002 (C) Bryan McRoberts <merton_monk@yahoo.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *
 */

public class Main {
    static final private double epsilon = 0.0001d;

    /**
     * protect the floor function from the vagaries of floating point precision.
     * @param d the double that we would like the floor value for
     * @return the floor after adding epsilon
     */
    public static double epsilonFloor(double d) {
        return Math.floor(d + epsilon);
    }
}

Related

1. epsilonEquals(final double a, final double b, final double epsilon)
2. epsilonEquals(final float x, final float y)
3. epsilonEquals(float f1, float f2, float epsilon)
4. epsilonEquals(float p_180185_0_, float p_180185_1_)
5. epsilonEquals(float v1, float v2)
6. epsilonZero(double input)