Package org.apache.commons.math.analysis

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

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*/
public final class BrentMinimizerTest {

    @Test
    public void testSinMin() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealOptimizer minimizer = new BrentOptimizer();
        minimizer.setMaxEvaluations(200);
        assertEquals(200, minimizer.getMaxEvaluations());
        try {
            minimizer.getResult();
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        }
    }

    @Test
    public void testMinEndpoints() throws Exception {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealOptimizer solver = new BrentOptimizer();

        // endpoint is minimum
        double result = solver.optimize(f, GoalType.MINIMIZE, 3 * Math.PI / 2, 5);
        assertEquals(3 * Math.PI / 2, result, 70 * solver.getAbsoluteAccuracy());
 
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    /**
     * Test of integrator for the sine function.
     */
    public void testSinFunction() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealIntegrator integrator = new TrapezoidIntegrator();
        double min, max, expected, result, tolerance;

        min = 0; max = Math.PI; expected = 2;
        tolerance = Math.abs(expected * integrator.getRelativeAccuracy());
 
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    /**
     * Test of parameters for the integrator.
     */
    public void testParameters() throws Exception {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealIntegrator integrator = new TrapezoidIntegrator();

        try {
            // bad interval
            integrator.integrate(f, 1, -1);
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        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            // bad function
            solver.solve(new SinFunction(), -1, 1);
            fail("Expecting IllegalArgumentException - bad function");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }
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    /**
     * Test of integrator for the sine function.
     */
    public void testSinFunction() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealIntegrator integrator = new SimpsonIntegrator();
        double min, max, expected, result, tolerance;

        min = 0; max = Math.PI; expected = 2;
        tolerance = Math.abs(expected * integrator.getRelativeAccuracy());
 
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    /**
     * Test of parameters for the integrator.
     */
    public void testParameters() throws Exception {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealIntegrator integrator = new SimpsonIntegrator();

        try {
            // bad interval
            integrator.integrate(f, 1, -1);
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    /**
     * Test of integrator for the sine function.
     */
    public void testSinFunction() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealIntegrator integrator = new RombergIntegrator();
        double min, max, expected, result, tolerance;

        min = 0; max = Math.PI; expected = 2;
        tolerance = Math.abs(expected * integrator.getRelativeAccuracy());
 
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    /**
     * Test of parameters for the integrator.
     */
    public void testParameters() throws Exception {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealIntegrator integrator = new RombergIntegrator();

        try {
            // bad interval
            integrator.integrate(f, 1, -1);
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*/
public final class BisectionSolverTest extends TestCase {

    @Deprecated
    public void testDeprecated() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        double result;
       
        UnivariateRealSolver solver = new BisectionSolver(f);
        result = solver.solve(3, 4);
        assertEquals(result, Math.PI, solver.getAbsoluteAccuracy());
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Related Classes of org.apache.commons.math.analysis.SinFunction

  • org.apache.commons.math.analysis.integration.LegendreGaussIntegratorTest
  • org.apache.commons.math.analysis.integration.RombergIntegratorTest
  • org.apache.commons.math.analysis.integration.SimpsonIntegratorTest
  • org.apache.commons.math.analysis.integration.TrapezoidIntegratorTest
  • org.apache.commons.math.analysis.interpolation.DividedDifferenceInterpolatorTest
  • org.apache.commons.math.analysis.interpolation.NevilleInterpolatorTest
  • org.apache.commons.math.analysis.solvers.BisectionSolverTest
  • org.apache.commons.math.analysis.solvers.BrentSolverTest
  • org.apache.commons.math.analysis.solvers.LaguerreSolverTest
  • org.apache.commons.math.analysis.solvers.MullerSolverTest
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