The DE is not linear. The docstring (type ?desolve) says:
"Solves a 1st or 2nd order linear ODE via maxima. "
On Feb 18, 2008 10:03 PM, Alex Ghitza <[EMAIL PROTECTED]> wrote:
>
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> Hi,
>
> I'm trying the following:
>
> ~ sage: t = var('t')
> ~ sage: x = function('x', t)
> ~ sage: de = lambda y: diff(y,t) - y^4
> ~ sage: desolve(de(x(t)),[x,t])
>
> I get: 't+%c'
>
> But x(t)=t is clearly not a solution of diff(y,t) = y^4. So either I'm
> doing something very silly, or I should report this as a bug.
>
> Best,
> Alex
>
>
>
>
> - --
> Alexandru Ghitza
> Assistant Professor
> Department of Mathematics
> Colby College
> Waterville, ME 04901
> http://bayes.colby.edu/~ghitza/
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