47 lines
1.4 KiB
Java
47 lines
1.4 KiB
Java
/*
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* Cubic.
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*
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* JavaZOOM : jlgui@javazoom.net
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* http://www.javazoom.net
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*
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*-----------------------------------------------------------------------
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*----------------------------------------------------------------------
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*/
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package javazoom.jlgui.player.amp.equalizer.ui;
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public class Cubic
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{
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float a, b, c, d; /* a + b*u + c*u^2 +d*u^3 */
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public Cubic(float a, float b, float c, float d)
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{
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this.a = a;
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this.b = b;
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this.c = c;
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this.d = d;
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}
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/**
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* Evaluate cubic.
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* @param u
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* @return
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*/
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public float eval(float u)
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{
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return (((d * u) + c) * u + b) * u + a;
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}
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}
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