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Numerical solution of differential equations


Taylor's method


To solve dy/dx = f(x,y) , subject to y(x0) = y0



where

x1 = x0 + h and

y1 = y(x1)


y'0 stands for y'(x0)


Euler's method

To solve dy/dx = f(x,y) , subject to y(x0) = y0


yn+1 = yn + h f ( xn , yn ) , n = 0,1,2, ...


where

xn+1 = xn + h and

yn = y(xn)

yn+1 = y(xn+1)


Runge- Kutta Method


To solve dy/dx = f(x,y) , subject to y(x0) = y0








where

x1 = x0 + h and

y1 = y(x1)


Milne's predictor corrector method


To solve dy/dx = f(x,y) , subject to

y(x0) = y0 , y(x1) =y1 , y(x2) =y2 , y(x3) =y3

where x0 , x1 , x2 , x3 are equally spaced.


predictor formula is




corrector formula is





where

x4 = x3 + h and

y4 = y(x4)



y'i stands for y'(xi)


Adam bashforth's predictor corrector method


To solve dy/dx = f(x,y) , subject to

y(x0) = y0 , y(x1) =y1 , y(x2) =y2 , y(x3) =y3

where x0 , x1 , x2 , x3 are equally spaced.


predictor formula is




corrector formula is



where

x4 = x3 + h and

y4 = y(x4)



y'i stands for y'(xi)






















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