eqn

package
v0.0.0-...-7f94595 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 11, 2016 License: MIT Imports: 2 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ZERO = NewConstantF(0.0)
	ONE  = NewConstantF(1.0)
)

Functions

func PRK4 

func PRK4(xn int, e Eqn, c, s []float64, ti, tj float64, x_in, x_out, x_tmp []float64) float64

func RK4 

func RK4(e []Eqn, c [][]float64, s []float64, ti, tj float64, x_in, x_tmp, x_out []float64)

x_out is the return here, pass in so we don't have to allocate each time

Types

type Abs 

type Abs struct {
	Unary
}

func NewAbs 

func NewAbs(e Eqn) *Abs

func (*Abs) Clone 

func (u *Abs) Clone() Eqn

func (*Abs) Eval 

func (u *Abs) Eval(t float64, x, c, s []float64) float64

func (*Abs) Javascript 

func (u *Abs) Javascript(dnames, snames []string, cvals []float64) string

func (*Abs) Latex 

func (u *Abs) Latex(dnames, snames []string, cvals []float64) string

func (*Abs) PrettyPrint 

func (u *Abs) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Abs) String 

func (u *Abs) String() string

type Add 

type Add struct {
	N_ary
}

N-ary Operators

func NewAdd 

func NewAdd() *Add

func (*Add) Clone 

func (n *Add) Clone() Eqn

func (*Add) Eval 

func (n *Add) Eval(t float64, x, c, s []float64) float64

func (*Add) Insert 

func (a *Add) Insert(e Eqn)

func (*Add) Javascript 

func (n *Add) Javascript(dnames, snames []string, cvals []float64) string

func (*Add) Latex 

func (n *Add) Latex(dnames, snames []string, cvals []float64) string

func (*Add) PrettyPrint 

func (n *Add) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Add) String 

func (n *Add) String() string

type Binary 

type Binary struct {
	Eqn
	C1, C2 Eqn
}

type Constant 

type Constant struct {
	Leaf
	P int
}

func NewConstant 

func NewConstant(i int) *Constant

func (*Constant) Clone 

func (c *Constant) Clone() Eqn

func (*Constant) Eval 

func (cnst *Constant) Eval(t float64, x, c, s []float64) float64

func (*Constant) Javascript 

func (c *Constant) Javascript(dnames, snames []string, cvals []float64) string

func (*Constant) Latex 

func (c *Constant) Latex(dnames, snames []string, cvals []float64) string

func (*Constant) PrettyPrint 

func (c *Constant) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Constant) String 

func (c *Constant) String() string

type ConstantF 

type ConstantF struct {
	Leaf
	F float64
}

func NewConstantF 

func NewConstantF(f float64) *ConstantF

func (*ConstantF) Clone 

func (c *ConstantF) Clone() Eqn

func (*ConstantF) Eval 

func (cnst *ConstantF) Eval(t float64, x, c, s []float64) float64

func (*ConstantF) Javascript 

func (c *ConstantF) Javascript(dnames, snames []string, cvals []float64) string

func (*ConstantF) Latex 

func (c *ConstantF) Latex(dnames, snames []string, cvals []float64) string

func (*ConstantF) PrettyPrint 

func (c *ConstantF) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*ConstantF) String 

func (c *ConstantF) String() string

type Cos 

type Cos struct {
	Unary
}

func NewCos 

func NewCos(e Eqn) *Cos

func (*Cos) Clone 

func (u *Cos) Clone() Eqn

func (*Cos) Eval 

func (u *Cos) Eval(t float64, x, c, s []float64) float64

func (*Cos) Javascript 

func (u *Cos) Javascript(dnames, snames []string, cvals []float64) string

func (*Cos) Latex 

func (u *Cos) Latex(dnames, snames []string, cvals []float64) string

func (*Cos) PrettyPrint 

func (u *Cos) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Cos) String 

func (u *Cos) String() string

type DVar 

type DVar struct {
	Leaf
	N int // dX_i
	//       ----
	D int // dX_j
	I int // index into the data to find this ratio (used in eval)
}

func NewDVar 

func NewDVar(n, d int) *DVar

func (*DVar) Clone 

func (dv *DVar) Clone() Eqn

func (*DVar) Eval 

func (dv *DVar) Eval(t float64, x, c, s []float64) float64

func (*DVar) Javascript 

func (dv *DVar) Javascript(dnames, snames []string, cvals []float64) string

func (*DVar) Latex 

func (dv *DVar) Latex(dnames, snames []string, cvals []float64) string

func (*DVar) PrettyPrint 

func (dv *DVar) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*DVar) String 

func (dv *DVar) String() string

type Div 

type Div struct {
	Eqn
	// Binary
	Numer Eqn
	Denom Eqn
}

func NewDiv 

func NewDiv(n, d Eqn) *Div

func (*Div) Clone 

func (n *Div) Clone() Eqn

func (*Div) Eval 

func (n *Div) Eval(t float64, x, c, s []float64) float64

func (*Div) Javascript 

func (n *Div) Javascript(dnames, snames []string, cvals []float64) string

func (*Div) Latex 

func (n *Div) Latex(dnames, snames []string, cvals []float64) string

func (*Div) PrettyPrint 

func (n *Div) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Div) String 

func (n *Div) String() string

type Eqn 

type Eqn interface {
	Clone() Eqn

	Eval(t float64, x, c, s []float64) float64

	String() string
	PrettyPrint(dnames, snames []string, cvals []float64) string
	Latex(dnames, snames []string, cvals []float64) string
	Javascript(dnames, snames []string, cvals []float64) string
}

type Exp 

type Exp struct {
	Unary
}

func NewExp 

func NewExp(e Eqn) *Exp

func (*Exp) Clone 

func (u *Exp) Clone() Eqn

func (*Exp) Eval 

func (u *Exp) Eval(t float64, x, c, s []float64) float64

func (*Exp) Javascript 

func (u *Exp) Javascript(dnames, snames []string, cvals []float64) string

func (*Exp) Latex 

func (u *Exp) Latex(dnames, snames []string, cvals []float64) string

func (*Exp) PrettyPrint 

func (u *Exp) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Exp) String 

func (u *Exp) String() string

type Leaf 

type Leaf struct {
	Eqn
}

type Log 

type Log struct {
	Unary
}

func NewLog 

func NewLog(e Eqn) *Log

func (*Log) Clone 

func (u *Log) Clone() Eqn

func (*Log) Eval 

func (u *Log) Eval(t float64, x, c, s []float64) float64

func (*Log) Javascript 

func (u *Log) Javascript(dnames, snames []string, cvals []float64) string

func (*Log) Latex 

func (u *Log) Latex(dnames, snames []string, cvals []float64) string

func (*Log) PrettyPrint 

func (u *Log) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Log) String 

func (u *Log) String() string

type Mul 

type Mul struct {
	N_ary
}

func NewMul 

func NewMul() *Mul

func (*Mul) Clone 

func (n *Mul) Clone() Eqn

func (*Mul) Eval 

func (n *Mul) Eval(t float64, x, c, s []float64) float64

func (*Mul) Insert 

func (a *Mul) Insert(e Eqn)

func (*Mul) Javascript 

func (n *Mul) Javascript(dnames, snames []string, cvals []float64) string

func (*Mul) Latex 

func (n *Mul) Latex(dnames, snames []string, cvals []float64) string

func (*Mul) PrettyPrint 

func (n *Mul) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Mul) String 

func (n *Mul) String() string

type N_ary 

type N_ary struct {
	Eqn
	CS []Eqn
}

type Neg 

type Neg struct {
	Unary
}

Unary Operators

func NewNeg 

func NewNeg(e Eqn) *Neg

func (*Neg) Clone 

func (u *Neg) Clone() Eqn

func (*Neg) Eval 

func (u *Neg) Eval(t float64, x, c, s []float64) float64

func (*Neg) Javascript 

func (u *Neg) Javascript(dnames, snames []string, cvals []float64) string

func (*Neg) Latex 

func (u *Neg) Latex(dnames, snames []string, cvals []float64) string

func (*Neg) PrettyPrint 

func (u *Neg) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Neg) String 

func (u *Neg) String() string

type PowE 

type PowE struct {
	Eqn
	// Binary
	Base  Eqn
	Power Eqn
}

func NewPowE 

func NewPowE(b, p Eqn) *PowE

func (*PowE) Clone 

func (n *PowE) Clone() Eqn

func (*PowE) Eval 

func (n *PowE) Eval(t float64, x, c, s []float64) float64

func (*PowE) Javascript 

func (u *PowE) Javascript(dnames, snames []string, cvals []float64) string

func (*PowE) Latex 

func (u *PowE) Latex(dnames, snames []string, cvals []float64) string

func (*PowE) PrettyPrint 

func (u *PowE) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*PowE) String 

func (n *PowE) String() string

type PowF 

type PowF struct {
	Eqn
	// Unary
	Base  Eqn
	Power float64
}

func NewPowF 

func NewPowF(b Eqn, f float64) *PowF

func (*PowF) Clone 

func (u *PowF) Clone() Eqn

func (*PowF) Eval 

func (u *PowF) Eval(t float64, x, c, s []float64) float64

func (*PowF) Javascript 

func (u *PowF) Javascript(dnames, snames []string, cvals []float64) string

func (*PowF) Latex 

func (u *PowF) Latex(dnames, snames []string, cvals []float64) string

func (*PowF) PrettyPrint 

func (u *PowF) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*PowF) String 

func (u *PowF) String() string

type PowI 

type PowI struct {
	Eqn
	// Unary
	Base  Eqn
	Power int
}

Hmmm... Operators

func NewPowI 

func NewPowI(e Eqn, i int) *PowI

func (*PowI) Clone 

func (u *PowI) Clone() Eqn

func (*PowI) Eval 

func (u *PowI) Eval(t float64, x, c, s []float64) float64

func (*PowI) Javascript 

func (u *PowI) Javascript(dnames, snames []string, cvals []float64) string

func (*PowI) Latex 

func (u *PowI) Latex(dnames, snames []string, cvals []float64) string

func (*PowI) PrettyPrint 

func (u *PowI) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*PowI) String 

func (u *PowI) String() string

type Sin 

type Sin struct {
	Unary
}

func NewSin 

func NewSin(e Eqn) *Sin

func (*Sin) Clone 

func (u *Sin) Clone() Eqn

func (*Sin) Eval 

func (u *Sin) Eval(t float64, x, c, s []float64) float64

func (*Sin) Javascript 

func (u *Sin) Javascript(dnames, snames []string, cvals []float64) string

func (*Sin) Latex 

func (u *Sin) Latex(dnames, snames []string, cvals []float64) string

func (*Sin) PrettyPrint 

func (u *Sin) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Sin) String 

func (u *Sin) String() string

type Sqrt 

type Sqrt struct {
	Unary
}

func NewSqrt 

func NewSqrt(e Eqn) *Sqrt

func (*Sqrt) Clone 

func (u *Sqrt) Clone() Eqn

func (*Sqrt) Eval 

func (u *Sqrt) Eval(t float64, x, c, s []float64) float64

func (*Sqrt) Javascript 

func (u *Sqrt) Javascript(dnames, snames []string, cvals []float64) string

func (*Sqrt) Latex 

func (u *Sqrt) Latex(dnames, snames []string, cvals []float64) string

func (*Sqrt) PrettyPrint 

func (u *Sqrt) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Sqrt) String 

func (u *Sqrt) String() string

type System 

type System struct {
	Leaf
	P int
}

func NewSystem 

func NewSystem(i int) *System

func (*System) Clone 

func (s *System) Clone() Eqn

func (*System) Eval 

func (sys *System) Eval(t float64, x, c, s []float64) float64

func (*System) Javascript 

func (s *System) Javascript(dnames, snames []string, cvals []float64) string

func (*System) Latex 

func (s *System) Latex(dnames, snames []string, cvals []float64) string

func (*System) PrettyPrint 

func (s *System) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*System) String 

func (s *System) String() string

type Tan 

type Tan struct {
	Unary
}

func NewTan 

func NewTan(e Eqn) *Tan

func (*Tan) Clone 

func (u *Tan) Clone() Eqn

func (*Tan) Eval 

func (u *Tan) Eval(t float64, x, c, s []float64) float64

func (*Tan) Javascript 

func (u *Tan) Javascript(dnames, snames []string, cvals []float64) string

func (*Tan) Latex 

func (u *Tan) Latex(dnames, snames []string, cvals []float64) string

func (*Tan) PrettyPrint 

func (u *Tan) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Tan) String 

func (u *Tan) String() string

type Time 

type Time struct {
	Leaf
}

Leaf Nodes

func NewTime 

func NewTime() *Time

func (*Time) Clone 

func (t *Time) Clone() Eqn

func (*Time) Eval 

func (*Time) Eval(t float64, x, c, s []float64) float64

func (*Time) Javascript 

func (t *Time) Javascript(dnames, snames []string, cvals []float64) string

func (*Time) Latex 

func (t *Time) Latex(dnames, snames []string, cvals []float64) string

func (*Time) PrettyPrint 

func (t *Time) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Time) String 

func (n *Time) String() string

type Unary 

type Unary struct {
	Eqn
	C Eqn
}

type Var 

type Var struct {
	Leaf
	P int
}

func NewVar 

func NewVar(i int) *Var

func (*Var) Clone 

func (v *Var) Clone() Eqn

func (*Var) Eval 

func (v *Var) Eval(t float64, x, c, s []float64) float64

func (*Var) Javascript 

func (v *Var) Javascript(dnames, snames []string, cvals []float64) string

func (*Var) Latex 

func (v *Var) Latex(dnames, snames []string, cvals []float64) string

func (*Var) PrettyPrint 

func (v *Var) PrettyPrint(dnames, snames []string, cvals []float64) string

func (*Var) String 

func (v *Var) String() string

Source Files

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