Java Double Number Truncate truncate(double x)

Description

Returns the value of the integer of highest magnitude (farthest from zero) whose absolute value is at most that of x.

License

Open Source License

Parameter

Parameter	Description
x	The value to truncate.

Return

The integer portion of x.

Declaration

public static double truncate(double x) 

Method Source Code

//package com.java2s;
/**/*from w  w  w . ja v a  2 s .  c  o m*/
 * Java Modular Image Synthesis Toolkit (JMIST)
 * Copyright (C) 2008-2013 Bradley W. Kimmel
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

public class Main {
    /**
     * Returns the value of the integer of highest magnitude (farthest from
     * zero) whose absolute value is at most that of <code>x</code>.
     * @param x The value to truncate.
     * @return The integer portion of <code>x</code>.
     */
    public static double truncate(double x) {
        return x > 0.0 ? Math.floor(x) : Math.ceil(x);
    }
}

Related

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2. truncate(double oldVal, double newMin, double newMax)
3. truncate(double value, double precision)
4. truncate(double value, int precision)
5. truncate(double value, int truncation)
6. truncate(double x)
7. truncate(double x, double gran)
8. truncate(double[] arr, int m)
9. truncate(final double value, final double min, final double max)