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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.Math
Assembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0
Syntax
public virtual double[,] Derivative(
	double[] xVec,
	double[] yVec,
	int xPartial,
	int yPartial
)

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
\frac{{\partial ^{i + j} s}}{{\partial ^i x\,\,\partial ^j y}}
where i = xPartial and j = yPartial, at each (x, y).
See Also