public override double Compute(IReadOnlyDictionary <string, double> variableValues)
{
double arg = Arg1.Compute(variableValues);
double Radian = arg * Math.PI / 180;
return(1 / Math.Tan(Radian));
}
public override Expr Diff()
{
if (!IsConstant)
{
if (Arg1.IsConstant)
{
if (Arg1.Compute() == E)
{
return(new FunPow(Arg1, Arg2));
}
else
{
return(Pow(Arg1, Arg2) * Log(Arg1));
}
}
else if (Arg2.IsConstant)
{
return(Arg2 * Pow(Arg1, Arg2 - 1));
}
throw new NotImplementedException();
}
else
{
return(new Constant(0));
}
}
public override double Compute(IReadOnlyDictionary <string, double> variableValues) => Arg1.Compute(variableValues) - Arg2.Compute(variableValues);
public override double Compute(IReadOnlyDictionary <string, double> variableValues) => 1 / Math.Tanh(Arg1.Compute(variableValues));
public override double Compute(IReadOnlyDictionary <string, double> variableValues) => (Math.PI / 2 - Math.Atan(Arg1.Compute(variableValues))) * 180 / Math.PI;
public override double Compute(IReadOnlyDictionary <string, double> variableValues)
{
return(Arg2 == null?Math.Log(Arg1.Compute(variableValues)) : Math.Log(Arg1.Compute(variableValues), Arg2.Compute(variableValues)));
}
public override double Compute(IReadOnlyDictionary <string, double> variableValues) => Math.Pow(Arg1.Compute(variableValues), Arg2.Compute(variableValues));
