2 years, 55 days

## @Thomas Richard   Yes, I am n...

Yes, I am not very familiar with the site and I am a beginner in Maple software. I need this equation with its answers and graph for my project. Now I use the dsole command to solve it to see if it gets the same answer?
Is it possible that it cannot be solved with this command because it is nonlinear?
My system hangs when running this command code and unfortunately it doesn't stop, I have to turn off the system.
Thank you very much for taking the time to answer my question.

## @Thomas Richard    Thank you ...

Thank you dear Richard,

@mmcdara

thanks

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## @tomleslie       T...

Thank you for taking time out of your busy day.
Sincerely,

delvin

## @rcorless    ok...

The equation is correct, but I didn't pay attention, I wrote some in my own language,sorry.

## @Rouben Rostamian      S...

Sorry, I was not paying attention.

Thanks ocean.

## @tomleslie   Ok, I want to ch...

Ok, I want to check the different solutions of the equation.

Thanks a million, You made my day.

## @tomleslie    Thank osean...

Thank osean very much for your time.

"Because the answers are not what I want , The answers obtained are obvious."

m4.mw

## @Joe Riel  This is the code I ...

This is the code I wrote, but it didn't get a good answer

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okey

## @dharr  thanks an ocean...

@dharr thanks an ocean

## How can I compare the values of A_0, A_1...

@dharr Thanks

 > restart; with(PDEtools):
 > pde2:=-lambda*diff(y(xi),xi)+y(xi)*diff(y(xi),xi)+diff(y(xi),xi\$2)=0;
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 > phi(xi):=(p[1]*exp(q[1]*xi)+p[2]*exp(q[2]*xi))/(p[3]*exp(q[3]*xi)+p[4]*exp(q[4]*xi)); eval(phi(xi),[p[1]=I,p[2]=-I,p[3]=1,p[4]=1,q[1]=I,q[2]=-I,q[3]=I,q[4]=-I]); simplify(%); phi(xi):=%; U(xi):=A[0]+sum(A[d]*phi(xi)^d,d=1)+sum(B[d]*phi(xi)^(-d),d=1);
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 > subs(y(xi)=U(xi),pde2);
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