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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
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Alexandru Ghitza
Assistant Professor
Department of Mathematics
Colby College
Waterville, ME 04901
http://bayes.colby.edu/~ghitza/
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