Function Math.Find Zero Method
Definition
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
Overload List
FindZero(Func<Vector<Double>, Double>[], Vector<Double>)
public static Vector<double> FindZero(
this Func<Vector<double>, double>[] targetFunctions,
Vector<double> initialGuess
)
Parameters
- targetFunctions Func<Vector<Double>, Double>[]
- An array of delegates that represent a multivariate function that specify the left-hand sides of the equation.
- initialGuess Vector<Double>
- An initial guess for the solution.
Return Value
Vector<Double>The best approximation to a zero of targetFunctions.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Vector<Double>, Double>[]. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Double, Double>, Double)
public static double FindZero(
this Func<double, double> targetFunction,
double initialGuess
)
Parameters
- targetFunction Func<Double, Double>
- A delegate that represents a function of one variable that specifies the function on the left-hand side of the equation.
- initialGuess Double
- An initial guess for ther zero.
Return Value
DoubleThe best approximation to a zero of targetFunction.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Double, Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Vector<Double>, Vector<Double>, Vector<Double>>, Vector<Double>)
public static Vector<double> FindZero(
this Func<Vector<double>, Vector<double>, Vector<double>> targetFunction,
Vector<double> initialGuess
)
Parameters
- targetFunction Func<Vector<Double>, Vector<Double>, Vector<Double>>
- A delegate that represents a multivariate function returning a vector in its second argument that calculates the left-hand sides of the equation.
- initialGuess Vector<Double>
- An initial guess for the solution.
Return Value
Vector<Double>The best approximation to a zero of targetFunction.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Vector<Double>, Vector<Double>, Vector<Double>>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Vector<Double>, Double>[], Func<Vector<Double>, Vector<Double>, Vector<Double>>[], Vector<Double>)
public static Vector<double> FindZero(
this Func<Vector<double>, double>[] targetFunctions,
Func<Vector<double>, Vector<double>, Vector<double>>[] gradientOfTargetFunctions,
Vector<double> initialGuess
)
Parameters
- targetFunctions Func<Vector<Double>, Double>[]
- A delegate that represents a multivariate function that specifies the function on the left-hand side of the equation.
- gradientOfTargetFunctions Func<Vector<Double>, Vector<Double>, Vector<Double>>[]
- A delegate that represents a multivariate function that specifies the gradient function of targetFunctions.
- initialGuess Vector<Double>
- An initial guess for ther zero.
Return Value
Vector<Double>The best approximation to a zero of targetFunctions.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Vector<Double>, Double>[]. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Double, Double>, Double, Double)
public static double FindZero(
this Func<double, double> targetFunction,
double lowerBound,
double upperBound
)
Parameters
- targetFunction Func<Double, Double>
- A delegate that represents a function of one variable that specifies the function on the left-hand side of the equation.
- lowerBound Double
- The lower bound of the interval that contains the root.
- upperBound Double
- The upper bound of the interval that contains the root.
Return Value
DoubleThe best approximation to a zero of targetFunction.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Double, Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Double, Double>, Func<Double, Double>, Double)
public static double FindZero(
this Func<double, double> targetFunction,
Func<double, double> derivativeOfTargetFunction,
double initialGuess
)
Parameters
- targetFunction Func<Double, Double>
- A delegate that represents a function of one variable that specifies the function on the left-hand side of the equation.
- derivativeOfTargetFunction Func<Double, Double>
- A delegate that represents a function of one variable that specifies the derivative function of targetFunction.
- initialGuess Double
- An initial guess for ther zero.
Return Value
DoubleThe best approximation to a zero of targetFunction.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Double, Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Vector<Double>, Vector<Double>, Vector<Double>>, Func<Vector<Double>, Matrix<Double>, Matrix<Double>>, Vector<Double>)
public static Vector<double> FindZero(
this Func<Vector<double>, Vector<double>, Vector<double>> targetFunction,
Func<Vector<double>, Matrix<double>, Matrix<double>> jacobianFunction,
Vector<double> initialGuess
)
Parameters
- targetFunction Func<Vector<Double>, Vector<Double>, Vector<Double>>
- A delegate that represents a multivariate function that specifies the functions on the left-hand side of the equations.
- jacobianFunction Func<Vector<Double>, Matrix<Double>, Matrix<Double>>
- A delegate that represents a multivariate function that specifies the Jacobian function of targetFunction.
- initialGuess Vector<Double>
- An initial guess for ther zero.
Return Value
Vector<Double>The best approximation to a zero of targetFunction.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Vector<Double>, Vector<Double>, Vector<Double>>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |
FindZero(Func<Double, Double>, Func<Double, Double>, Double, Double, Double)
public static double FindZero(
this Func<double, double> targetFunction,
Func<double, double> derivativeOfTargetFunction,
double initialGuess,
double lowerBound,
double upperBound
)
Parameters
- targetFunction Func<Double, Double>
- A delegate that represents a function of one variable that specifies the function on the left-hand side of the equation.
- derivativeOfTargetFunction Func<Double, Double>
- A delegate that represents a function of one variable that specifies the derivative function of targetFunction.
- initialGuess Double
- An initial guess for ther zero.
- lowerBound Double
- The lower bound of the interval that contains the root.
- upperBound Double
- The upper bound of the interval that contains the root.
Return Value
DoubleThe best approximation to a zero of targetFunction.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type Func<Double, Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).Remarks
Use this method when you have very little information about the location of the zero.
Exceptions
Convergence | The algorithm failed to converge to a solution. |