public void Constructor_Variable()
{
PolynomialDivision v = 'a';
(v == 0).AssertIsFalse();
v.IsConstant.AssertIsFalse();
v.IsPolynomial.AssertIsTrue();
v.ToString().AssertIsEqualTo("a");
((PolynomialTerm)v).AssertIsEqualTo('a');
v.DerivativeBy('a').AssertIsEqualTo(1);
v.DerivativeBy('b').AssertIsEqualTo(0);
(2 * v).AssertIsEqualTo(2 * Term.a);
(v / 2).AssertIsEqualTo(0.5 * Term.a);
v.GetOperation('a').Value(5).AssertIsEqualTo(5);
}
public void Constructor_Default()
{
PolynomialDivision v = default;
v.AssertIsEqualTo(0);
(v == 0).AssertIsTrue();
v.IsPolynomial.AssertIsTrue();
v.IsConstant.AssertIsTrue();
v.ToString().AssertIsEqualTo("0");
v.DerivativeBy('a').AssertIsEqualTo(0);
(2 * v).AssertIsEqualTo(0);
(v / 2).AssertIsEqualTo(0);
v.GetOperation().Value().AssertIsEqualTo(0);
}
public void Constructor_Constant()
{
PolynomialDivision v = 2;
(v == 0).AssertIsFalse();
v.IsPolynomial.AssertIsTrue();
v.IsConstant.AssertIsTrue();
v.ToString().AssertIsEqualTo("2");
v.AssertIsEqualTo(2);
(1 == v).AssertIsFalse();
(0 == v).AssertIsFalse();
v.DerivativeBy('a').AssertIsEqualTo(0);
(2 * v).AssertIsEqualTo(4);
(v / 2).AssertIsEqualTo(1);
v.GetOperation().Value().AssertIsEqualTo(2);
}
public void GetCartesianAxisViewsRatiosDerivativesByAngle()
{
var sphericalPoint = new HypersphericalCoordinate(r, new Number[] { α, β, γ, δ });
Span <Number> cartesianActual = new Number[5];
sphericalPoint.ToCartesian(in cartesianActual);
for (ushort anglePos = 0; anglePos < sphericalPoint.Angles.Length; ++anglePos)
{
PolynomialTerm angleTerm = (PolynomialTerm)sphericalPoint.Angles.Span[anglePos];
var derivatives = new HypersphericalCoordinateOnAxisViewForAngleDerivatives(sphericalPoint, anglePos: anglePos).DerivativesCartesianVector;
derivatives.Length.AssertIsEqualTo(sphericalPoint.DimensionsCount);
for (ushort coordinatePos = 0; coordinatePos < cartesianActual.Length; ++coordinatePos)
{
PolynomialDivision coordinate = (PolynomialDivision)cartesianActual[coordinatePos];
PolynomialDivision expected = coordinate.DerivativeBy(angleTerm);
derivatives[coordinatePos].AssertIsEqualTo(expected);
}
}
}