Returns the value of the partial derivative of the tensor-product spline at the point (x, y).
Returns the value of the partial derivative of the tensor-product spline at the point (x, y).
public virtual double Derivative(double,double,int,int);
Returns the values of the partial derivative of the tensor-product spline of an array of points.
public virtual double[,] Derivative(double[],double[],int,int);
Spline2D Class | Imsl.Math Namespace