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Student Support Forum: 'some trouble with DSolve' topicStudent Support Forum > General > "some trouble with DSolve"

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Author Comment/Response
Bill Simpson
04/18/13 9:45pm

You say

D[n[x, t], {x,1}]==k/a*n[x,t]

thus I believe

D[n[x, t], {x,2}]==(k/a)^2*n[x,t]

thus I believe your problem becomes

In[1]:= eqns = {D[n[x, t], {t,1}] - 1/Np - a*(k/a)^2*n[x, t]==0};
DSolve[eqns, n[x, t], {x, t}]

Out[2]= {{n[x, t] -> -(a/(k^2*Np)) + E^((k^2*t)/a)*C[1][x]}}

Please check this very carefully to make certain I have not made any mistakes.

Then you can try to get Mathematica to do it without manual intervention or insight.

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Subject (listing for 'some trouble with DSolve')
Author Date Posted
some trouble with DSolve darin 04/18/13 08:43am
Re: some trouble with DSolve Bill Simpson 04/18/13 9:45pm
Re: Re: some trouble with DSolve darin 04/19/13 09:03am
Re: Re: some trouble with DSolve VR 04/25/13 00:31am
Re: Re: Re: some trouble with DSolve Bill Simpson 04/25/13 4:12pm
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