Unable to use deSolve

[jeronantropis]

Hi,

i have the following (very strange) problem. When I try to solve a diff.eq., for example:

y" + y'/x - y/x = 0

and I type:

deSolve(y"+y'/x-y/x=0,x,y)

you'd expect to get the solution. But, in stead of a solution y=f(x), my ti-89 simply solves the equation for y", so i get the result:

y"=-(y'-y)/x

This is the result you'd get when you use the "solve" command, but not when you use "deSolve".

Is there any way I can fix this problem?

thx a lot!!

[bostonvaulter]

I'm not sure what the exact problem is, but it seems like it is related to the problem you are trying to solve. It means that there is no straightforward answer, you should try using different equations.

[jeronantropis]