public override Node ReturnDerivative(double x)
{
SineFunction sineNode = new SineFunction(child.Copy());
CosineFunction cosineNode = new CosineFunction(child.Copy());
DivisionSign division = new DivisionSign(sineNode, cosineNode);
return(division.ReturnDerivative(x));
}
public override Node ReturnDerivative(double x)
{
NaturalNumberNode zero = new NaturalNumberNode(0);
SineFunction sineNode = new SineFunction(child.Copy());
MinusSign minusNode = new MinusSign(zero, sineNode);
Node childDerivative = child.ReturnDerivative(x);
MultiplicationSign multiplicationSign = new MultiplicationSign(minusNode, childDerivative);
return(multiplicationSign);
}