Package org.apache.commons.math3.analysis

Examples of org.apache.commons.math3.analysis.SinFunction

46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
     * <p>
     * |sin^(n)(zeta)| <= 1.0, zeta in [0, 2*PI]
     */
    @Test
    public void testSinFunction() {
        UnivariateFunction f = new SinFunction();
        UnivariateInterpolator interpolator = new NevilleInterpolator();
        double x[], y[], z, expected, result, tolerance;

        // 6 interpolating points on interval [0, 2*PI]
        int n = 6;
        double min = 0.0, max = 2 * FastMath.PI;
        x = new double[n];
        y = new double[n];
        for (int i = 0; i < n; i++) {
            x[i] = min + i * (max - min) / n;
            y[i] = f.value(x[i]);
        }
        double derivativebound = 1.0;
        UnivariateFunction p = interpolator.interpolate(x, y);

        z = FastMath.PI / 4; expected = f.value(z); result = p.value(z);
        tolerance = FastMath.abs(derivativebound * partialerror(x, z));
        Assert.assertEquals(expected, result, tolerance);

        z = FastMath.PI * 1.5; expected = f.value(z); result = p.value(z);
        tolerance = FastMath.abs(derivativebound * partialerror(x, z));
        Assert.assertEquals(expected, result, tolerance);
    }
View Full Code Here
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
     * <p>
     * |sin^(n)(zeta)| <= 1.0, zeta in [0, 2*PI]
     */
    @Test
    public void testSinFunction() {
        UnivariateFunction f = new SinFunction();
        UnivariateInterpolator interpolator = new DividedDifferenceInterpolator();
        double x[], y[], z, expected, result, tolerance;

        // 6 interpolating points on interval [0, 2*PI]
        int n = 6;
        double min = 0.0, max = 2 * FastMath.PI;
        x = new double[n];
        y = new double[n];
        for (int i = 0; i < n; i++) {
            x[i] = min + i * (max - min) / n;
            y[i] = f.value(x[i]);
        }
        double derivativebound = 1.0;
        UnivariateFunction p = interpolator.interpolate(x, y);

        z = FastMath.PI / 4; expected = f.value(z); result = p.value(z);
        tolerance = FastMath.abs(derivativebound * partialerror(x, z));
        Assert.assertEquals(expected, result, tolerance);

        z = FastMath.PI * 1.5; expected = f.value(z); result = p.value(z);
        tolerance = FastMath.abs(derivativebound * partialerror(x, z));
        Assert.assertEquals(expected, result, tolerance);
    }
View Full Code Here
27
28
29
30
31
32
33
34
35
36
37
* @version $Id: BisectionSolverTest.java 1244107 2012-02-14 16:17:55Z erans $
*/
public final class BisectionSolverTest {
    @Test
    public void testSinZero() {
        UnivariateFunction f = new SinFunction();
        double result;

        BisectionSolver solver = new BisectionSolver();
        result = solver.solve(100, f, 3, 4);
        Assert.assertEquals(result, FastMath.PI, solver.getAbsoluteAccuracy());
View Full Code Here
82
83
84
85
86
87
88
89
90
        Assert.assertTrue(solver.getEvaluations() > 0);
    }

    @Test
    public void testMath369() {
        UnivariateFunction f = new SinFunction();
        BisectionSolver solver = new BisectionSolver();
        Assert.assertEquals(FastMath.PI, solver.solve(100, f, 3.0, 3.2, 3.1), solver.getAbsoluteAccuracy());
    }
View Full Code Here
216
217
218
219
220
221
222
223
224
225
226
    /** Test of parameters for the transformer. */
    @Test
    public void testParameters()
        throws Exception {
        UnivariateFunction f = new SinFunction();
        FastCosineTransformer transformer;
        transformer = new FastCosineTransformer(DctNormalization.STANDARD_DCT_I);

        try {
            // bad interval
View Full Code Here
248
249
250
251
252
253
254
255
256
257
258
    }

    /** Test of transformer for the sine function. */
    @Test
    public void testSinFunction() {
        UnivariateFunction f = new SinFunction();
        FastCosineTransformer transformer;
        transformer = new FastCosineTransformer(DctNormalization.STANDARD_DCT_I);
        double min, max, result[], tolerance = 1E-12;
        int N = 9;

View Full Code Here
451
452
453
454
455
456
457
458
459
460
461
    /**
     * Test of transformer for the sine function.
     */
    @Test
    public void testSinFunction() {
        UnivariateFunction f = new SinFunction();
        FastFourierTransformer transformer;
        transformer = new FastFourierTransformer(DftNormalization.STANDARD);
        Complex result[]; int N = 1 << 8;
        double min, max, tolerance = 1E-12;

View Full Code Here
245
246
247
248
249
250
251
252
253
254
255
    /**
     * Test of transformer for the sine function.
     */
    @Test
    public void testSinFunction() {
        UnivariateFunction f = new SinFunction();
        FastSineTransformer transformer;
        transformer = new FastSineTransformer(DstNormalization.STANDARD_DST_I);
        double min, max, result[], tolerance = 1E-12; int N = 1 << 8;

        min = 0.0; max = 2.0 * FastMath.PI;
 
View Full Code Here
270
271
272
273
274
275
276
277
278
279
280
    /**
     * Test of parameters for the transformer.
     */
    @Test
    public void testParameters() throws Exception {
        UnivariateFunction f = new SinFunction();
        FastSineTransformer transformer;
        transformer = new FastSineTransformer(DstNormalization.STANDARD_DST_I);

        try {
            // bad interval
View Full Code Here
33
34
35
36
37
38
39
40
41
42
43
*/
public final class BrentOptimizerTest {

    @Test
    public void testSinMin() {
        UnivariateFunction f = new SinFunction();
        UnivariateOptimizer optimizer = new BrentOptimizer(1e-10, 1e-14);
        Assert.assertEquals(3 * Math.PI / 2, optimizer.optimize(200, f, GoalType.MINIMIZE, 4, 5).getPoint(),1e-8);
        Assert.assertTrue(optimizer.getEvaluations() <= 50);
        Assert.assertEquals(200, optimizer.getMaxEvaluations());
        Assert.assertEquals(3 * Math.PI / 2, optimizer.optimize(200, f, GoalType.MINIMIZE, 1, 5).getPoint(), 1e-8);
View Full Code Here
TOP

Related Classes of org.apache.commons.math3.analysis.SinFunction

  • org.apache.commons.math3.analysis.differentiation.DerivativeStructure
  • org.apache.commons.math3.analysis.differentiation.MultivariateDifferentiableVectorFunction
  • org.apache.commons.math3.analysis.function.HarmonicOscillator
  • org.apache.commons.math3.analysis.function.Sin
  • org.apache.commons.math3.analysis.function.Sinc
  • org.apache.commons.math3.analysis.integration.RombergIntegratorTest
  • org.apache.commons.math3.analysis.integration.SimpsonIntegratorTest
  • org.apache.commons.math3.analysis.integration.TrapezoidIntegratorTest
  • org.apache.commons.math3.analysis.MultivariateFunction
  • org.apache.commons.math3.analysis.QuinticFunction
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.