public virtual double DerivInvF(double z)
{
return(Differentiate.FirstDerivative(InvF, z));
}
public virtual double DerivF(double x)
{
return(Differentiate.FirstDerivative(F, x));
}
public static double thirdDerivative(Expr expr, string varName, double x)
{
var f = expr.Compile(varName);
return(Differentiate.FirstDerivative(Differentiate.SecondDerivativeFunc(f), x));
}
public static double firstDerivative(Expr expr, string varName, double x)
{
var f = expr.Compile(varName);
return(Differentiate.FirstDerivative(f, x));
}
protected double FirstDerivative(double inputX)
{
return(Differentiate.FirstDerivative(CalculateByPoint, inputX));
}
public const double g = 9.80665; // aceleração da gravidade [m/s^2]
/// <summary>
/// Calcula a primeira derivada da função func no ponto x
/// <param name="func">A função que vai ser derivada. </param>
/// <param name="x">O ponto em que se deseja calcular a derivada. </param>
/// <returns> dfunc(x)/dx. </returns>
/// </summary>
public double PrimeiraDerivada(Func <double, double> func, double x)
{
return(Differentiate.FirstDerivative(func, x));
}