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Boby

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These are questions asked by Boby

lambda for higher order ODE...

Boby 15 Maple 13
programming lagrange
August 14 2015
0 5

hi, I want calculate lambda(lagrange multiplier) for lane emden type equation, I have made a programme for it but here is error at the end of programme,plz help

lambda.3rd.mw

3rd ordre singular equation...

Boby 15 Maple 13
ode differential-equation dsolve
August 11 2015
1 3

hi, I am tyying to solve this equation but there is arising an error, plz help me,
VIM.3rd_order.mw

variational iteration method...

Boby 15 Maple 13
ode
August 08 2015
1 6

Hi, I'm tying to solve the ODE by variational iteration method, programme is running, but maple answer does'nt  match to origional answer, plz tell me the mistake?

ICs y(0)=y'(0)=y''(0)=1

VIM_2.mw

ODE of Lane-Emden type...

Boby 15 Maple 13
ode singular
August 04 2015
3 0

 

diff(y(x), x, x)+2*(diff(y(x), x))/x+af(x)*g(y(x))=0

> 

restart
> 

"n:=5: y[0]:=0: f(x):=1: g(y):=e^(-y): L:=x^(-2)(ⅆ)/(ⅆ x) (x^(2)(ⅆ)/(ⅆ x) ): L^(-1)(y):=(∫)[0]^(x)x^(-2)(∫)[0]^(x)x^(2)dxdx: "
> 

"for m from 1 to n do: `&varkappa;`[m]:={[[0,m<=1],[1,m>1]]: R[m]:=simplifyL^(-1)((d^(2)y[m-1])/(dx^(2))+(2)/(x)(&DifferentialD;y[m-1])/(&DifferentialD; x)+f(x)g(y) ); y[m]:=simplify(y[m-1]*`&varkappa;`[m]-R[m]): od;"

``

plz help me, I m trying to solve homotopy analysis method for lane emden, what additional steps I have to taken in above programming?

Download LE_EQ.mw

How to solve those ODEs ?...

Boby 15 Maple 13
singular
July 31 2015
0 2

plz help me, how do i solve singular ODEs of lane Emden type equation for homotopy analysis method in maple? there is arising an arror, invalid fraction

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