Example usage for org.apache.commons.math.analysis PolynomialFunction getCoefficients

Introduction

In this page you can find the example usage for org.apache.commons.math.analysis PolynomialFunction getCoefficients.

Prototype

public double[] getCoefficients() 

Source Link

Document

Returns a copy of the coefficients array.

Usage

From source file:com.golemgame.properties.fengGUI.FunctionTab.java

public static PropertyStore invertView(PropertyStore store, UnivariateRealFunction function) {
    if (function instanceof PolynomialFunction) {
        PolynomialFunction f = (PolynomialFunction) function;
        PolynomialFunctionInterpreter interp = new PolynomialFunctionInterpreter(store);
        for (int i = 0; i <= f.degree(); i++) {
            interp.setCoefficient(i, new DoubleType(f.getCoefficients()[i]));
        }// www .  j a v  a2  s.c o  m
    } else if (function instanceof SinFunction) {
        SinFunction f = (SinFunction) function;
        SineFunctionInterpreter interp = new SineFunctionInterpreter(store);
        interp.setAmplitude(f.getAmplitude());
        interp.setLambda(f.getLambda());
        interp.setPhase(f.getPhase());
    } else if (function instanceof SqrtFunction) {
        SqrtFunction f = (SqrtFunction) function;
        SqrtFunctionInterpreter interp = new SqrtFunctionInterpreter(store);

    } else if (function instanceof CombinedTransformationFunction) {
        //finally, the combined knotted function will be recursively defined.
        CombinedTransformationFunction f = (CombinedTransformationFunction) function;
        CombinedFunctionInterpreter interp = new CombinedFunctionInterpreter(store);
        interp.setBottom(f.getBottom());
        interp.setTop(f.getTop());
        interp.setLeft(f.getLeft());
        interp.setRight(f.getRight());
        interp.setLocalScaleX(f.getScaleX());
        interp.setLocalScaleY(f.getScaleY());
        interp.setTranslateX(f.getTranslateX());
        interp.setTranslateY(f.getTranslateY());

        invertView(interp.getFunction1(), f.getBaseFunction());
        invertView(interp.getFunction2(), f.getKnottedFunction());
    } else if (function instanceof KnottedFunction) {
        KnottedFunction f = (KnottedFunction) function;
        KnottedFunctionInterpreter interp = new KnottedFunctionInterpreter(store);

        for (int i = 0; i < f.count(); i++) {
            interp.setKnot(i, f.getXKnots()[i], f.getYKnots()[i]);
        }

    } else {
        StateManager.getLogger().warning("Unrecognized Function");
    }

    return store;
}

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From source file:org.jcurl.core.math.FunctionBridgeTest.java

public void testPoly() throws org.apache.commons.math.FunctionEvaluationException, MathException {
    final PolynomialFunction p0 = new PolynomialFunction(new double[] { 1, 0.1, 0.01, 0.001 });
    final Polynome p1 = new PolynomeImpl(p0.getCoefficients());
    final FunctionBridge b0 = FunctionBridge.newInstance(p0);
    final FunctionBridge b1 = FunctionBridge.newInstance(p1);
    for (double x = -100; x < 100; x += 0.9) {
        assertEquals(b0.at(x), b0.value(x), 1e-9);
        assertEquals(b1.at(x), b1.value(x), 1e-9);
        assertEquals(b0.at(x), b1.at(x), 1e-9);
        for (int i = 0; i < 100; i++) {
            assertEquals(b0.at(x, i), b1.at(x, i), 1e-9);
        }//  ww w .  j a  v a 2s. c o m
    }
}

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From source file:org.jcurl.math.FunctionBridgeTest.java

public void testPoly() throws org.apache.commons.math.FunctionEvaluationException, MathException {
    final PolynomialFunction p0 = new PolynomialFunction(new double[] { 1, 0.1, 0.01, 0.001 });
    final Polynome p1 = new Polynome(p0.getCoefficients());
    final FunctionBridge b0 = FunctionBridge.newInstance(p0);
    final FunctionBridge b1 = FunctionBridge.newInstance(p1);
    for (double x = -100; x < 100; x += 0.9) {
        assertEquals(b0.at(x), b0.value(x), 1e-9);
        assertEquals(b1.at(x), b1.value(x), 1e-9);
        assertEquals(b0.at(x), b1.at(x), 1e-9);
        for (int i = 0; i < 100; i++)
            assertEquals(b0.at(i, x), b1.at(i, x), 1e-9);
    }/*from w ww  . ja v a2s.c o  m*/
}

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