Symbolic Math.Get Jacobian Method
Definition
Namespace: Numerics.NET
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.3
Overload List
Get | Returns a delegate that evaluates the Jacobian of a multivariate vector function. |
Get | Returns a delegate that symbolically evaluates the Jacobian of a collection of multivariate function. |
GetJacobian(Expression<Func<Vector<Double>, Double>>[])
Returns a delegate that evaluates the Jacobian of a multivariate vector function.
public static Func<Vector<double>, Matrix<double>?, Matrix<double>> GetJacobian(
params Expression<Func<Vector<double>, double>>[] functions
)
Parameters
- functions Expression<Func<Vector<Double>, Double>>[]
- An array of lambda expressions that represent a multivariate function.
Return Value
Func<Vector<Double>, Matrix<Double>, Matrix<Double>>A delegate that represents a multivariate function returning a matrix in its second argument.
Remarks
The partial derivatives are calculated symbolically from the supplied lambda expressions. The expressions must not contain loops or blocks. If functions are encountered for which no symbolic derivative is available, a numerical approximation is used.
GetJacobian(IEnumerable<Expression<Func<Vector<Double>, Double>>>)
Returns a delegate that symbolically evaluates the Jacobian of a collection of multivariate function.
public static Func<Vector<double>, Matrix<double>, Matrix<double>> GetJacobian(
IEnumerable<Expression<Func<Vector<double>, double>>> functions
)
Parameters
- functions IEnumerable<Expression<Func<Vector<Double>, Double>>>
- A sequence of lambda expressions that represent a multivariate function.
Return Value
Func<Vector<Double>, Matrix<Double>, Matrix<Double>>A delegate that represents a multivariate function returning a matrix in its second argument.
Remarks
The partial derivatives are calculated symbolically from the supplied lambda expressions. The expressions must not contain loops or blocks. If functions are encountered for which no symbolic derivative is available, a numerical approximation is used.