///
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(expectedExceptions = IllegalArgumentException.class) public void shortx0Test()
public virtual void shortx0Test()
{
double[] x0Values = new double[] { 1.0 };
double[] x1Values = new double[] { 0.0, 1.0, 2.0 };
double[][] yValues = new double[][]
{
new double[] { 1.0, 2.0, 4.0 }
};
BicubicSplineInterpolator interp = new BicubicSplineInterpolator(new CubicSplineInterpolator());
interp.interpolate(x0Values, x1Values, yValues);
}
///
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(expectedExceptions = IllegalArgumentException.class) public void notKnotRevoveredTests()
public virtual void notKnotRevoveredTests()
{
double[] x0Values = new double[] { 0.0, 1.0, 2.0, 3.0 };
double[] x1Values = new double[] { 0.0, 1.0, 2.0 };
double[][] yValues = new double[][]
{
new double[] { 1.e-20, 3.e-120, 5.e120 },
new double[] { 2.e-20, 3.e-120, 4.e-120 },
new double[] { 1.e-20, 1.e-120, 1.e-20 },
new double[] { 4.e-120, 3.e-20, 2.e-20 }
};
BicubicSplineInterpolator intp = new BicubicSplineInterpolator(new CubicSplineInterpolator());
intp.interpolate(x0Values, x1Values, yValues);
}
///
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(expectedExceptions = IllegalArgumentException.class) public void notTwoMethodsTest()
public virtual void notTwoMethodsTest()
{
double[] x0Values = new double[] { 0.0, 1.0, 2.0, 3.0 };
double[] x1Values = new double[] { 0.0, 1.0, 2.0 };
double[][] yValues = new double[][]
{
new double[] { 1.0, 2.0, 4.0 },
new double[] { -1.0, 2.0, -4.0 },
new double[] { 2.0, 3.0, 4.0 },
new double[] { 5.0, 2.0, 1.0 }
};
BicubicSplineInterpolator interp = new BicubicSplineInterpolator(new PiecewisePolynomialInterpolator[] { new CubicSplineInterpolator() });
interp.interpolate(x0Values, x1Values, yValues);
}
///
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(expectedExceptions = IllegalArgumentException.class) public void coincideX1Test()
public virtual void coincideX1Test()
{
double[] x0Values = new double[] { 0.0, 1.0, 2.0, 3.0 };
double[] x1Values = new double[] { 0.0, 1.0, 1.0 };
double[][] yValues = new double[][]
{
new double[] { 1.0, 2.0, 4.0 },
new double[] { -1.0, 2.0, -4.0 },
new double[] { 2.0, 3.0, 4.0 },
new double[] { 5.0, 2.0, 1.0 }
};
BicubicSplineInterpolator interp = new BicubicSplineInterpolator(new CubicSplineInterpolator());
interp.interpolate(x0Values, x1Values, yValues);
}
///
public virtual void crossDerivativeTest()
{
double[] x0Values = new double[] { 1.0, 2.0, 3.0, 4.0 };
double[] x1Values = new double[] { -1.0, 0.0, 1.0, 2.0, 3.0 };
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n0Data = x0Values.length;
int n0Data = x0Values.Length;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n1Data = x1Values.length;
int n1Data = x1Values.Length;
double[][] yValues = new double[][]
{
new double[] { 1.0, -1.0, 0.0, 1.0, 0.0 },
new double[] { 1.0, -1.0, 0.0, 1.0, -2.0 },
new double[] { 1.0, -2.0, 0.0, -2.0, -2.0 },
new double[] { -1.0, -1.0, -2.0, -2.0, -1.0 }
};
NaturalSplineInterpolator method = new NaturalSplineInterpolator();
PiecewisePolynomialInterpolator2D interp = new BicubicSplineInterpolator(method);
PiecewisePolynomialResult2D result = interp.interpolate(x0Values, x1Values, yValues);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n0IntExp = n0Data - 1;
int n0IntExp = n0Data - 1;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n1IntExp = n1Data - 1;
int n1IntExp = n1Data - 1;
const int orderExp = 4;
const int n0Keys = 51;
const int n1Keys = 61;
double[] x0Keys = new double[n0Keys];
double[] x1Keys = new double[n1Keys];
for (int i = 0; i < n0Keys; ++i)
{
x0Keys[i] = 0.0 + 5.0 * i / (n0Keys - 1);
}
for (int i = 0; i < n1Keys; ++i)
{
x1Keys[i] = -2.0 + 6.0 * i / (n1Keys - 1);
}
assertEquals(result.NumberOfIntervals[0], n0IntExp);
assertEquals(result.NumberOfIntervals[1], n1IntExp);
assertEquals(result.Order[0], orderExp);
assertEquals(result.Order[1], orderExp);
for (int i = 0; i < n0Data; ++i)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(x0Values[i]) == 0.0 ? 1.0 : Math.abs(x0Values[i]);
double @ref = Math.Abs(x0Values[i]) == 0.0 ? 1.0 : Math.Abs(x0Values[i]);
assertEquals(result.Knots0.get(i), x0Values[i], @ref * EPS);
assertEquals(result.Knots2D[0].get(i), x0Values[i], @ref * EPS);
}
for (int i = 0; i < n1Data; ++i)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(x1Values[i]) == 0.0 ? 1.0 : Math.abs(x1Values[i]);
double @ref = Math.Abs(x1Values[i]) == 0.0 ? 1.0 : Math.Abs(x1Values[i]);
assertEquals(result.Knots1.get(i), x1Values[i], @ref * EPS);
assertEquals(result.Knots2D[1].get(i), x1Values[i], @ref * EPS);
}
for (int i = 0; i < n0Data - 1; ++i)
{
for (int j = 0; j < n1Data - 1; ++j)
{
double @ref = Math.Abs(yValues[i][j]) == 0.0 ? 1.0 : Math.Abs(yValues[i][j]);
assertEquals(result.Coefs[i][j].get(orderExp - 1, orderExp - 1), yValues[i][j], @ref * EPS);
}
}
DoubleMatrix resValues = interp.interpolate(x0Values, x1Values, yValues, x0Values, x1Values);
PiecewisePolynomialFunction2D func2D = new PiecewisePolynomialFunction2D();
DoubleMatrix resDiffX0 = func2D.differentiateX0(result, x0Values, x1Values);
DoubleMatrix resDiffX1 = func2D.differentiateX1(result, x0Values, x1Values);
PiecewisePolynomialFunction1D func1D = new PiecewisePolynomialFunction1D();
DoubleMatrix expDiffX0 = func1D.differentiate(method.interpolate(x0Values, OG_ALGEBRA.getTranspose(DoubleMatrix.copyOf(yValues)).toArray()), x0Values);
DoubleMatrix expDiffX1 = func1D.differentiate(method.interpolate(x1Values, yValues), x1Values);
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
double expVal = expDiffX1.get(i, j);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resDiffX1.get(i, j), expVal, @ref * EPS);
}
}
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
double expVal = expDiffX0.get(j, i);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resDiffX0.get(i, j), expVal, @ref * EPS);
}
}
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
double expVal = yValues[i][j];
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resValues.get(i, j), expVal, @ref * EPS);
}
}
}
/// <summary>
/// f(x0,x1) = ( x0 - 1.)^3 * (x1 + 14./13.)^3
/// </summary>
public virtual void cubicTest()
{
double[] x0Values = new double[] { 1.0, 2.0, 3.0, 4.0 };
double[] x1Values = new double[] { -1.0, 0.0, 1.0, 2.0, 3.0 };
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n0Data = x0Values.length;
int n0Data = x0Values.Length;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n1Data = x1Values.length;
int n1Data = x1Values.Length;
//JAVA TO C# CONVERTER NOTE: The following call to the 'RectangularArrays' helper class reproduces the rectangular array initialization that is automatic in Java:
//ORIGINAL LINE: double[][] yValues = new double[n0Data][n1Data];
double[][] yValues = RectangularArrays.ReturnRectangularDoubleArray(n0Data, n1Data);
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
yValues[i][j] = (x0Values[i] - 1.0) * (x0Values[i] - 1.0) * (x0Values[i] - 1.0) * (x1Values[j] + 14.0 / 13.0) * (x1Values[j] + 14.0 / 13.0) * (x1Values[j] + 14.0 / 13.0);
}
}
CubicSplineInterpolator method = new CubicSplineInterpolator();
PiecewisePolynomialInterpolator2D interp = new BicubicSplineInterpolator(method);
PiecewisePolynomialResult2D result = interp.interpolate(x0Values, x1Values, yValues);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n0IntExp = n0Data - 1;
int n0IntExp = n0Data - 1;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n1IntExp = n1Data - 1;
int n1IntExp = n1Data - 1;
const int orderExp = 4;
const int n0Keys = 51;
const int n1Keys = 61;
double[] x0Keys = new double[n0Keys];
double[] x1Keys = new double[n1Keys];
for (int i = 0; i < n0Keys; ++i)
{
x0Keys[i] = 0.0 + 5.0 * i / (n0Keys - 1);
}
for (int i = 0; i < n1Keys; ++i)
{
x1Keys[i] = -2.0 + 6.0 * i / (n1Keys - 1);
}
assertEquals(result.NumberOfIntervals[0], n0IntExp);
assertEquals(result.NumberOfIntervals[1], n1IntExp);
assertEquals(result.Order[0], orderExp);
assertEquals(result.Order[1], orderExp);
for (int i = 0; i < n0Data; ++i)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(x0Values[i]) == 0.0 ? 1.0 : Math.abs(x0Values[i]);
double @ref = Math.Abs(x0Values[i]) == 0.0 ? 1.0 : Math.Abs(x0Values[i]);
assertEquals(result.Knots0.get(i), x0Values[i], @ref * EPS);
assertEquals(result.Knots2D[0].get(i), x0Values[i], @ref * EPS);
}
for (int i = 0; i < n1Data; ++i)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(x1Values[i]) == 0.0 ? 1.0 : Math.abs(x1Values[i]);
double @ref = Math.Abs(x1Values[i]) == 0.0 ? 1.0 : Math.Abs(x1Values[i]);
assertEquals(result.Knots1.get(i), x1Values[i], @ref * EPS);
assertEquals(result.Knots2D[1].get(i), x1Values[i], @ref * EPS);
}
for (int i = 0; i < n0Data - 1; ++i)
{
for (int j = 0; j < n1Data - 1; ++j)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(yValues[i][j]) == 0.0 ? 1.0 : Math.abs(yValues[i][j]);
double @ref = Math.Abs(yValues[i][j]) == 0.0 ? 1.0 : Math.Abs(yValues[i][j]);
assertEquals(result.Coefs[i][j].get(orderExp - 1, orderExp - 1), yValues[i][j], @ref * EPS);
}
}
DoubleMatrix resValues = interp.interpolate(x0Values, x1Values, yValues, x0Values, x1Values);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.math.impl.function.PiecewisePolynomialFunction2D func2D = new com.opengamma.strata.math.impl.function.PiecewisePolynomialFunction2D();
PiecewisePolynomialFunction2D func2D = new PiecewisePolynomialFunction2D();
DoubleMatrix resDiffX0 = func2D.differentiateX0(result, x0Values, x1Values);
DoubleMatrix resDiffX1 = func2D.differentiateX1(result, x0Values, x1Values);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final com.opengamma.strata.math.impl.function.PiecewisePolynomialFunction1D func1D = new com.opengamma.strata.math.impl.function.PiecewisePolynomialFunction1D();
PiecewisePolynomialFunction1D func1D = new PiecewisePolynomialFunction1D();
DoubleMatrix expDiffX0 = func1D.differentiate(method.interpolate(x0Values, OG_ALGEBRA.getTranspose(DoubleMatrix.copyOf(yValues)).toArray()), x0Values);
DoubleMatrix expDiffX1 = func1D.differentiate(method.interpolate(x1Values, yValues), x1Values);
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = expDiffX1.get(i, j);
double expVal = expDiffX1.get(i, j);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resDiffX1.get(i, j), expVal, @ref * EPS);
}
}
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = expDiffX0.get(j, i);
double expVal = expDiffX0.get(j, i);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resDiffX0.get(i, j), expVal, @ref * EPS);
}
}
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = yValues[i][j];
double expVal = yValues[i][j];
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resValues.get(i, j), expVal, @ref * EPS);
}
}
}
///
public virtual void linearTest()
{
double[] x0Values = new double[] { 1.0, 2.0, 3.0, 4.0 };
double[] x1Values = new double[] { -1.0, 0.0, 1.0, 2.0, 3.0 };
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n0Data = x0Values.length;
int n0Data = x0Values.Length;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n1Data = x1Values.length;
int n1Data = x1Values.Length;
//JAVA TO C# CONVERTER NOTE: The following call to the 'RectangularArrays' helper class reproduces the rectangular array initialization that is automatic in Java:
//ORIGINAL LINE: double[][] yValues = new double[n0Data][n1Data];
double[][] yValues = RectangularArrays.ReturnRectangularDoubleArray(n0Data, n1Data);
for (int i = 0; i < n0Data; ++i)
{
for (int j = 0; j < n1Data; ++j)
{
yValues[i][j] = (x0Values[i] + 2.0) * (x1Values[j] + 5.0);
}
}
CubicSplineInterpolator method = new CubicSplineInterpolator();
PiecewisePolynomialInterpolator2D interp = new BicubicSplineInterpolator(new CubicSplineInterpolator[] { method, method });
PiecewisePolynomialResult2D result = interp.interpolate(x0Values, x1Values, yValues);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n0IntExp = n0Data - 1;
int n0IntExp = n0Data - 1;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int n1IntExp = n1Data - 1;
int n1IntExp = n1Data - 1;
const int orderExp = 4;
//JAVA TO C# CONVERTER NOTE: The following call to the 'RectangularArrays' helper class reproduces the rectangular array initialization that is automatic in Java:
//ORIGINAL LINE: DoubleMatrix[][] coefsExp = new DoubleMatrix[n0Data - 1][n1Data - 1];
DoubleMatrix[][] coefsExp = RectangularArrays.ReturnRectangularDoubleMatrixArray(n0Data - 1, n1Data - 1);
for (int i = 0; i < n0Data - 1; ++i)
{
for (int j = 0; j < n1Data - 1; ++j)
{
coefsExp[i][j] = DoubleMatrix.ofUnsafe(new double[][]
{
new double[] { 0.0, 0.0, 0.0, 0.0 },
new double[] { 0.0, 0.0, 0.0, 0.0 },
new double[] { 0.0, 0.0, 1.0, (5.0 + x1Values[j]) },
new double[] { 0.0, 0.0, (2.0 + x0Values[i]), (2.0 + x0Values[i]) * (5.0 + x1Values[j]) }
});
}
}
assertEquals(result.NumberOfIntervals[0], n0IntExp);
assertEquals(result.NumberOfIntervals[1], n1IntExp);
assertEquals(result.Order[0], orderExp);
assertEquals(result.Order[1], orderExp);
const int n0Keys = 51;
const int n1Keys = 61;
double[] x0Keys = new double[n0Keys];
double[] x1Keys = new double[n1Keys];
for (int i = 0; i < n0Keys; ++i)
{
x0Keys[i] = 0.0 + 5.0 * i / (n0Keys - 1);
}
for (int i = 0; i < n1Keys; ++i)
{
x1Keys[i] = -2.0 + 6.0 * i / (n1Keys - 1);
}
for (int i = 0; i < n0Data; ++i)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(x0Values[i]) == 0.0 ? 1.0 : Math.abs(x0Values[i]);
double @ref = Math.Abs(x0Values[i]) == 0.0 ? 1.0 : Math.Abs(x0Values[i]);
assertEquals(result.Knots0.get(i), x0Values[i], @ref * EPS);
assertEquals(result.Knots2D[0].get(i), x0Values[i], @ref * EPS);
}
for (int i = 0; i < n1Data; ++i)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(x1Values[i]) == 0.0 ? 1.0 : Math.abs(x1Values[i]);
double @ref = Math.Abs(x1Values[i]) == 0.0 ? 1.0 : Math.Abs(x1Values[i]);
assertEquals(result.Knots1.get(i), x1Values[i], @ref * EPS);
assertEquals(result.Knots2D[1].get(i), x1Values[i], @ref * EPS);
}
for (int i = 0; i < n0Data - 1; ++i)
{
for (int j = 0; j < n1Data - 1; ++j)
{
for (int k = 0; k < orderExp; ++k)
{
for (int l = 0; l < orderExp; ++l)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(coefsExp[i][j].get(k, l)) == 0.0 ? 1.0 : Math.abs(coefsExp[i][j].get(k, l));
double @ref = Math.Abs(coefsExp[i][j].get(k, l)) == 0.0 ? 1.0 : Math.Abs(coefsExp[i][j].get(k, l));
assertEquals(result.Coefs[i][j].get(k, l), coefsExp[i][j].get(k, l), @ref * EPS);
}
}
}
}
DoubleMatrix resValues = interp.interpolate(x0Values, x1Values, yValues, x0Keys, x1Keys);
for (int i = 0; i < n0Keys; ++i)
{
for (int j = 0; j < n1Keys; ++j)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = (x0Keys[i] + 2.0) * (x1Keys[j] + 5.0);
double expVal = (x0Keys[i] + 2.0) * (x1Keys[j] + 5.0);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resValues.get(i, j), expVal, @ref * EPS);
}
}
for (int i = 0; i < n0Keys; ++i)
{
for (int j = 0; j < n1Keys; ++j)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = (x0Keys[i] + 2.0) * (x1Keys[j] + 5.0);
double expVal = (x0Keys[i] + 2.0) * (x1Keys[j] + 5.0);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(resValues.get(i, j), expVal, @ref * EPS);
}
}
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = (x0Keys[1] + 2.0) * (x1Keys[2] + 5.0);
double expVal = (x0Keys[1] + 2.0) * (x1Keys[2] + 5.0);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(interp.interpolate(x0Values, x1Values, yValues, x0Keys[1], x1Keys[2]), expVal, @ref * EPS);
}
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double expVal = (x0Keys[23] + 2.0) * (x1Keys[20] + 5.0);
double expVal = (x0Keys[23] + 2.0) * (x1Keys[20] + 5.0);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final double ref = Math.abs(expVal) == 0.0 ? 1.0 : Math.abs(expVal);
double @ref = Math.Abs(expVal) == 0.0 ? 1.0 : Math.Abs(expVal);
assertEquals(interp.interpolate(x0Values, x1Values, yValues, x0Keys[23], x1Keys[20]), expVal, @ref * EPS);
}
}