numMethods

Documentation

Index

• Variables
• type INumericFunc
• type IResult
  • func ErrorFound(err *NumericMethodError) IResult
  • func NoSolutionFound() IResult
  • func SolutionFound(res float64) IResult
• type NumFunc
  • func (f NumFunc) ApplyTo(arg float64) float64
• type NumericMethod
• type NumericMethodError
  • func (e *NumericMethodError) Error() string
• type NumericMethodUsingDerivative
• type NumericMethodUsingSecondDerivative
• type NumericResultType
• type Params

Variables

var AllNumericMethodsHaveBeenFailed = error(allNumericMethodsHaveBeenFailed)

var FunctionHasNoSolutionInIntervalErr = error(functionHasNoSolutionInInterval)

var FunctionValueIsNanOrInfinityErr = error(functionValueIsNanOrInfinity)

var FunctionsDeltaIsZeroErr = error(functionsDeltaIsZero)

Types

type INumericFunc

type INumericFunc interface {
	ApplyTo(arg float64) float64
}

type to represent a function

type IResult

type IResult interface {
	Value() float64
	IsSolution() bool
	Error() *NumericMethodError
}

func ErrorFound

func ErrorFound(err *NumericMethodError) IResult

func NoSolutionFound

func NoSolutionFound() IResult

func SolutionFound

func SolutionFound(res float64) IResult

type NumFunc

type NumFunc func(arg float64) float64

Default implementation

func (NumFunc) ApplyTo

func (f NumFunc) ApplyTo(arg float64) float64

type NumericMethod

type NumericMethod interface {
	Calculate(F INumericFunc, methodParams *Params) IResult
}

type to represent a numeric method

type NumericMethodError

type NumericMethodError struct {
	// contains filtered or unexported fields
}

func (*NumericMethodError) Error

func (e *NumericMethodError) Error() string

type NumericMethodUsingDerivative

type NumericMethodUsingDerivative interface {
	Calculate(F INumericFunc, derivativeF INumericFunc, methodParams *Params) IResult
}

type to represent a numeric method using derivative of function

type NumericMethodUsingSecondDerivative

type NumericMethodUsingSecondDerivative interface {
	Calculate(F INumericFunc, derivativeF INumericFunc, secondDerivativeF INumericFunc, methodParams *Params) IResult
}

type to a numeric method using second derivative of function

type NumericResultType

type NumericResultType int

type to represent status of calculations

const (
	NumericResultType_HasSolution NumericResultType = 1 + iota
	NumericResultType_NoSolution
)

type Params

type Params struct {
	// max count of method iterations
	MaxIterationsCount uint64
	// acceptable calculation error
	Epsilon float64
}

parameters of numeric methods