Examples of UnivariateRealFunction

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

44
45
46
47
48
49
50
51
52
53
54
    @Deprecated
    public void testDeprecated() throws MathException {
        // The sinus function is behaved well around the root at #pi. The second
        // order derivative is zero, which means linar approximating methods will
        // still converge quadratically.
        UnivariateRealFunction f = new SinFunction();
        double result;
        UnivariateRealSolver solver = new BrentSolver(f);
        // Somewhat benign interval. The function is monotone.
        result = solver.solve(3, 4);
        //System.out.println(
View Full Code Here

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

81
82
83
84
85
86
87
88
89
90
91
    public void testSinZero() throws MathException {
        // The sinus function is behaved well around the root at #pi. The second
        // order derivative is zero, which means linar approximating methods will
        // still converge quadratically.
        UnivariateRealFunction f = new SinFunction();
        double result;
        UnivariateRealSolver solver = new BrentSolver();
        // Somewhat benign interval. The function is monotone.
        result = solver.solve(f, 3, 4);
        //System.out.println(
View Full Code Here

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

122
123
124
125
126
127
128
129
130
131
132
        // of zero a 0.
        // The other roots are less well to find, in particular the root at 1, because
        // the function grows fast for x>1.
        // The function has extrema (first derivative is zero) at 0.27195613 and 0.82221643,
        // intervals containing these values are harder for the solvers.
        UnivariateRealFunction f = new QuinticFunction();
        double result;
        // Brent-Dekker solver.
        UnivariateRealSolver solver = new BrentSolver();
        // Symmetric bracket around 0. Test whether solvers can handle hitting
        // the root in the first iteration.
View Full Code Here

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

301
302
303
304
305
306
307
308
309
310
311
        result = UnivariateRealSolverUtils.solve(f, 0.85, 5);
        assertEquals(result, 1.0, 1E-6);
    }

    public void testRootEndpoints() throws Exception {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealSolver solver = new BrentSolver();

        // endpoint is root
        double result = solver.solve(f, Math.PI, 4);
        assertEquals(Math.PI, result, solver.getAbsoluteAccuracy());
View Full Code Here

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

320
321
322
323
324
325
326
327
328
329
330
        assertEquals(Math.PI, result, solver.getAbsoluteAccuracy());

    }

    public void testBadEndpoints() throws Exception {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealSolver solver = new BrentSolver();
        try {  // bad interval
            solver.solve(f, 1, -1);
            fail("Expecting IllegalArgumentException - bad interval");
        } catch (IllegalArgumentException ex) {
View Full Code Here

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

42
43
44
45
46
47
48
49
50
51
52
    /**
     * Test deprecated APIs.
     */
    @Deprecated
    public void testDeprecated() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealSolver solver = new MullerSolver(f);
        double min, max, expected, result, tolerance;

        min = 3.0; max = 4.0; expected = Math.PI;
        tolerance = Math.max(solver.getAbsoluteAccuracy(),
View Full Code Here

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

64
65
66
67
68
69
70
71
72
73
74
    /**
     * Test deprecated APIs.
     */
    @Deprecated
    public void testDeprecated2() throws MathException {
        UnivariateRealFunction f = new QuinticFunction();
        MullerSolver solver = new MullerSolver(f);
        double min, max, expected, result, tolerance;

        min = -0.4; max = 0.2; expected = 0.0;
        tolerance = Math.max(solver.getAbsoluteAccuracy(),
View Full Code Here

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

91
92
93
94
95
96
97
98
99
100
101
    /**
     * Test of solver for the sine function.
     */
    public void testSinFunction() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        UnivariateRealSolver solver = new MullerSolver();
        double min, max, expected, result, tolerance;

        min = 3.0; max = 4.0; expected = Math.PI;
        tolerance = Math.max(solver.getAbsoluteAccuracy(),
View Full Code Here

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

112
113
114
115
116
117
118
119
120
121
122
    /**
     * Test of solver for the sine function using solve2().
     */
    public void testSinFunction2() throws MathException {
        UnivariateRealFunction f = new SinFunction();
        MullerSolver solver = new MullerSolver();
        double min, max, expected, result, tolerance;

        min = 3.0; max = 4.0; expected = Math.PI;
        tolerance = Math.max(solver.getAbsoluteAccuracy(),
View Full Code Here

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

133
134
135
136
137
138
139
140
141
142
143
    /**
     * Test of solver for the quintic function.
     */
    public void testQuinticFunction() throws MathException {
        UnivariateRealFunction f = new QuinticFunction();
        UnivariateRealSolver solver = new MullerSolver();
        double min, max, expected, result, tolerance;

        min = -0.4; max = 0.2; expected = 0.0;
        tolerance = Math.max(solver.getAbsoluteAccuracy(),
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. 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.