//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void tes_differentiateNoCrosst()
public virtual void tes_differentiateNoCrosst()
{
System.Func <DoubleArray, DoubleArray> func = (DoubleArray x) =>
{
double x1 = x.get(0);
double x2 = x.get(1);
return(DoubleArray.of(x1 * x1 * x1 + x2 * x2, Math.Exp(1.5 * x1), Math.Log(2d * x1) * Math.Sin(x2)));
};
double[][] keys = new double[][]
{
new double[] { 1.5, -2.1 },
new double[] { 2.3445, 0.5 }
};
System.Func <DoubleArray, DoubleMatrix> funcExp = (DoubleArray x) =>
{
double x1 = x.get(0);
double x2 = x.get(1);
double[][] mat = new double[][]
{
new double[] { 6d * x1, 2.25 * Math.Exp(1.5 * x1), -Math.Sin(x2) / x1 / x1 },
new double[] { 2d, 0d, -Math.Log(2d * x1) * Math.Sin(x2) }
};
return(DoubleMatrix.ofUnsafe(mat));
};
VectorFieldSecondOrderDifferentiator fd = new VectorFieldSecondOrderDifferentiator();
System.Func <DoubleArray, DoubleMatrix> fdFuncs = fd.differentiateNoCross(func);
foreach (double[] key in keys)
{
DoubleMatrix cmp = fdFuncs(DoubleArray.ofUnsafe(key));
DoubleMatrix exp = funcExp(DoubleArray.ofUnsafe(key));
assertTrue(DoubleArrayMath.fuzzyEquals(cmp.column(0).toArray(), exp.row(0).toArray(), 1.0e-5));
assertTrue(DoubleArrayMath.fuzzyEquals(cmp.column(1).toArray(), exp.row(1).toArray(), 1.0e-5));
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void domainTest()
public virtual void domainTest()
{
DoubleArray[] x = new DoubleArray[4];
x[0] = DoubleArray.of(2.3, 0.34);
x[1] = DoubleArray.of(1e-8, 1.45);
x[2] = DoubleArray.of(1.2, 0.0);
x[3] = DoubleArray.of(1.2, Math.PI);
VectorFieldSecondOrderDifferentiator fd = new VectorFieldSecondOrderDifferentiator();
System.Func <DoubleArray, DoubleMatrix[]> fdFuncs = fd.differentiate(FUNC, DOMAIN);
for (int k = 0; k < 4; k++)
{
DoubleMatrix[] fdValues = fdFuncs(x[k]);
DoubleMatrix t1 = DW1.apply(x[k]);
DoubleMatrix t2 = DW2.apply(x[k]);
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 2; j++)
{
assertEquals("first observation " + i + " " + j, t1.get(i, j), fdValues[0].get(i, j), 1e-6);
assertEquals("second observation " + i + " " + j, t2.get(i, j), fdValues[1].get(i, j), 1e-6);
}
}
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(expectedExceptions = IllegalArgumentException.class) public void outsideDomainTest()
public virtual void outsideDomainTest()
{
VectorFieldSecondOrderDifferentiator fd = new VectorFieldSecondOrderDifferentiator();
System.Func <DoubleArray, DoubleMatrix[]> fdFuncs = fd.differentiate(FUNC, DOMAIN);
fdFuncs(DoubleArray.of(-1.0, 0.3));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void test()
public virtual void test()
{
double a = 2.3;
double theta = 0.34;
DoubleArray x = DoubleArray.of(a, theta);
VectorFieldSecondOrderDifferentiator fd = new VectorFieldSecondOrderDifferentiator();
System.Func <DoubleArray, DoubleMatrix[]> fdFuncs = fd.differentiate(FUNC);
DoubleMatrix[] fdValues = fdFuncs(x);
DoubleMatrix t1 = DW1.apply(x);
DoubleMatrix t2 = DW2.apply(x);
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 2; j++)
{
assertEquals("first observation " + i + " " + j, t1.get(i, j), fdValues[0].get(i, j), 1e-6);
assertEquals("second observation " + i + " " + j, t2.get(i, j), fdValues[1].get(i, j), 1e-6);
}
}
}
public FuncAnonymousInnerClass2(VectorFieldSecondOrderDifferentiator outerInstance, System.Func <DoubleArray, DoubleMatrix[]> hFunc)
{
this.outerInstance = outerInstance;
this.hFunc = hFunc;
}
public FuncAnonymousInnerClass4(VectorFieldSecondOrderDifferentiator outerInstance, System.Func <DoubleArray, DoubleArray> function)
{
this.outerInstance = outerInstance;
this.function = function;
}