Package org.apache.commons.math3.ode.sampling

Examples of org.apache.commons.math3.ode.sampling.DummyStepInterpolator.shift()

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        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

        interpolator.shift();
        interpolator.storeTime(r2 + 0.4 * gap);
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r2, es.getEventTime(), tolerance);

    }
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                                       new BrentSolver(tolerance));

        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);

        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
 
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        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);

        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));

        interpolator.shift();
        interpolator.storeTime(0.5 * (r1 + r2));
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        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));

        interpolator.shift();
        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

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        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

        interpolator.shift();
        interpolator.storeTime(r2 + 0.4 * gap);
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r2, es.getEventTime(), tolerance);

    }
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  }

  private StepInterpolator buildInterpolator(double t0, double[] y0, double t1) {
      DummyStepInterpolator interpolator  = new DummyStepInterpolator(y0, new double[y0.length], t1 >= t0);
      interpolator.storeTime(t0);
      interpolator.shift();
      interpolator.storeTime(t1);
      return interpolator;
  }

  public void checkValue(double value, double reference) {
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        }));

        AbstractStepInterpolator interpolator =
            new DummyStepInterpolator(new double[0], new double[0], true);
        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);

        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
 
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        interpolator.storeTime(r1 - 2.5 * gap);
        interpolator.shift();
        interpolator.storeTime(r1 - 1.5 * gap);
        es.reinitializeBegin(interpolator);

        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));

        interpolator.shift();
        interpolator.storeTime(0.5 * (r1 + r2));
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        interpolator.shift();
        interpolator.storeTime(r1 - 0.5 * gap);
        Assert.assertFalse(es.evaluateStep(interpolator));

        interpolator.shift();
        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

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        interpolator.storeTime(0.5 * (r1 + r2));
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r1, es.getEventTime(), tolerance);
        es.stepAccepted(es.getEventTime(), new double[0]);

        interpolator.shift();
        interpolator.storeTime(r2 + 0.4 * gap);
        Assert.assertTrue(es.evaluateStep(interpolator));
        Assert.assertEquals(r2, es.getEventTime(), tolerance);

    }
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