org.apache.commons.math.ode.FirstOrderDifferentialEquations Java Examples
The following examples show how to use
org.apache.commons.math.ode.FirstOrderDifferentialEquations.
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Example #1
| Source File: ThreeEighthesIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ThreeEighthesIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #2
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if (equations instanceof ExtendedFirstOrderDifferentialEquations) {
mainSetDimension = ((ExtendedFirstOrderDifferentialEquations) equations).getMainSetDimension();
} else {
mainSetDimension = equations.getDimension();
}
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != mainSetDimension)) {
throw new IntegratorException(
LocalizedFormats.DIMENSIONS_MISMATCH_SIMPLE, mainSetDimension, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != mainSetDimension)) {
throw new IntegratorException(
LocalizedFormats.DIMENSIONS_MISMATCH_SIMPLE, mainSetDimension, vecRelativeTolerance.length);
}
}
Example #3
| Source File: MidpointIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new MidpointIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #4
| Source File: GillIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new GillIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #5
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" absolute tolerance vector has dimension {1}",
y0.length, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" relative tolerance vector has dimension {1}",
y0.length, vecRelativeTolerance.length);
}
}
Example #6
| Source File: ClassicalRungeKuttaIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ClassicalRungeKuttaIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #7
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" absolute tolerance vector has dimension {1}",
y0.length, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" relative tolerance vector has dimension {1}",
y0.length, vecRelativeTolerance.length);
}
}
Example #8
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" absolute tolerance vector has dimension {1}",
y0.length, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" relative tolerance vector has dimension {1}",
y0.length, vecRelativeTolerance.length);
}
}
Example #9
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if (equations instanceof ExtendedFirstOrderDifferentialEquations) {
mainSetDimension = ((ExtendedFirstOrderDifferentialEquations) equations).getMainSetDimension();
} else {
mainSetDimension = equations.getDimension();
}
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != mainSetDimension)) {
throw new IntegratorException(
LocalizedFormats.DIMENSIONS_MISMATCH_SIMPLE, mainSetDimension, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != mainSetDimension)) {
throw new IntegratorException(
LocalizedFormats.DIMENSIONS_MISMATCH_SIMPLE, mainSetDimension, vecRelativeTolerance.length);
}
}
Example #10
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if (equations instanceof ExtendedFirstOrderDifferentialEquations) {
mainSetDimension = ((ExtendedFirstOrderDifferentialEquations) equations).getMainSetDimension();
} else {
mainSetDimension = equations.getDimension();
}
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != mainSetDimension)) {
throw new IntegratorException(
LocalizedFormats.DIMENSIONS_MISMATCH_SIMPLE, mainSetDimension, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != mainSetDimension)) {
throw new IntegratorException(
LocalizedFormats.DIMENSIONS_MISMATCH_SIMPLE, mainSetDimension, vecRelativeTolerance.length);
}
}
Example #11
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" absolute tolerance vector has dimension {1}",
y0.length, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" relative tolerance vector has dimension {1}",
y0.length, vecRelativeTolerance.length);
}
}
Example #12
| Source File: MidpointIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new MidpointIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #13
| Source File: ThreeEighthesIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ThreeEighthesIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #14
| Source File: ClassicalRungeKuttaIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ClassicalRungeKuttaIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #15
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" absolute tolerance vector has dimension {1}",
y0.length, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" relative tolerance vector has dimension {1}",
y0.length, vecRelativeTolerance.length);
}
}
Example #16
| Source File: EulerIntegratorTest.java From astor with GNU General Public License v2.0 | 6 votes |
|
@Test
public void testStepSize()
throws MathUserException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new EulerIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
Assert.assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #17
| Source File: AdaptiveStepsizeIntegrator.java From astor with GNU General Public License v2.0 | 6 votes |
|
/** Perform some sanity checks on the integration parameters.
* @param equations differential equations set
* @param t0 start time
* @param y0 state vector at t0
* @param t target time for the integration
* @param y placeholder where to put the state vector
* @exception IntegratorException if some inconsistency is detected
*/
@Override
protected void sanityChecks(final FirstOrderDifferentialEquations equations,
final double t0, final double[] y0,
final double t, final double[] y)
throws IntegratorException {
super.sanityChecks(equations, t0, y0, t, y);
if ((vecAbsoluteTolerance != null) && (vecAbsoluteTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" absolute tolerance vector has dimension {1}",
y0.length, vecAbsoluteTolerance.length);
}
if ((vecRelativeTolerance != null) && (vecRelativeTolerance.length != y0.length)) {
throw new IntegratorException(
"dimensions mismatch: state vector has dimension {0}," +
" relative tolerance vector has dimension {1}",
y0.length, vecRelativeTolerance.length);
}
}
Example #18
| Source File: ThreeEighthesIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ThreeEighthesIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #19
| Source File: ThreeEighthesIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ThreeEighthesIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #20
| Source File: ThreeEighthesIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ThreeEighthesIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #21
| Source File: MidpointIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new MidpointIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #22
| Source File: GillIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new GillIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #23
| Source File: ClassicalRungeKuttaIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ClassicalRungeKuttaIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #24
| Source File: GillIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new GillIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #25
| Source File: ClassicalRungeKuttaIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ClassicalRungeKuttaIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #26
| Source File: MidpointIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new MidpointIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #27
| Source File: EulerIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new EulerIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #28
| Source File: ClassicalRungeKuttaIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new ClassicalRungeKuttaIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #29
| Source File: GillIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new GillIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
Example #30
| Source File: GillIntegratorTest.java From astor with GNU General Public License v2.0 | 5 votes |
|
public void testStepSize()
throws DerivativeException, IntegratorException {
final double step = 1.23456;
FirstOrderIntegrator integ = new GillIntegrator(step);
integ.addStepHandler(new StepHandler() {
public void handleStep(StepInterpolator interpolator, boolean isLast) {
if (! isLast) {
assertEquals(step,
interpolator.getCurrentTime() - interpolator.getPreviousTime(),
1.0e-12);
}
}
public boolean requiresDenseOutput() {
return false;
}
public void reset() {
}
});
integ.integrate(new FirstOrderDifferentialEquations() {
private static final long serialVersionUID = 0L;
public void computeDerivatives(double t, double[] y, double[] dot) {
dot[0] = 1.0;
}
public int getDimension() {
return 1;
}
}, 0.0, new double[] { 0.0 }, 5.0, new double[1]);
}
