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NumericalDerivativeEvaluatePartialDerivative(FuncDouble, Double, Double, Int32, Int32, NullableDouble) Method

Evaluates the partial derivatives of a multivariate function array.

Namespace: Altaxo.Calc.Differentiation
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3179.0 (4.8.3179.0)
Syntax
C#
Copy
public double[] EvaluatePartialDerivative(
	Func<double[], double>[] f,
	double[] x,
	int parameterIndex,
	int order,
	double?[] currentValue = null
)

Parameters

f  FuncDouble, Double
Multivariate vector function array handle.
x  Double
Vector at which to evaluate the derivatives.
parameterIndex  Int32
Index of independent variable for partial derivative.
order  Int32
Derivative order.
currentValue  NullableDouble  (Optional)
Current function value at center.

Return Value

Double
Vector of functions partial derivatives at x of the specified order.
Remarks
This function assumes the input vector x is of the correct length for f.
See Also