Spline2DDerivative Method (Double, Double, Int32, Int32) |
Returns the values of the partial derivative of the tensor-product spline
of an array of points.
Namespace: Imsl.MathAssembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0
Syntax public virtual double[,] Derivative(
double[] xVec,
double[] yVec,
int xPartial,
int yPartial
)
Public Overridable Function Derivative (
xVec As Double(),
yVec As Double(),
xPartial As Integer,
yPartial As Integer
) As Double(,)
public:
virtual array<double,2>^ Derivative(
array<double>^ xVec,
array<double>^ yVec,
int xPartial,
int yPartial
)
abstract Derivative :
xVec : float[] *
yVec : float[] *
xPartial : int *
yPartial : int -> float[,]
override Derivative :
xVec : float[] *
yVec : float[] *
xPartial : int *
yPartial : int -> float[,]
Parameters
- xVec
- Type: SystemDouble
A double array specifying the
x-coordinates at which the spline is to be evaluated.
- yVec
- Type: SystemDouble
A double array specifying the
y-coordinates at which the spline is to be evaluated.
- xPartial
- Type: SystemInt32
An int scalar specifying the x-partial derivative.
- yPartial
- Type: SystemInt32
An int scalar specifying the y-partial derivative.
Return Value
Type:
Double An
double matrix containing the values of
the partial derivatives
where
i =
xPartial and
j =
yPartial, at each
(x, y).
See Also