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desolve does not use contrib_ode #7144

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robert-marik mannequin opened this issue Oct 6, 2009 · 2 comments
Closed

desolve does not use contrib_ode #7144

robert-marik mannequin opened this issue Oct 6, 2009 · 2 comments

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@robert-marik
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Mannequin

robert-marik mannequin commented Oct 6, 2009

The following code fails

y=function('y',x)
eqn=x*diff(y,x)^2-(1+x*y)*diff(y,x)+y == 0
desolve(eqn,y)

However, Maxima is able to produce the solution using contrib_ode command. If ode2 fails, Sage should call contrib_ode

maxima commands

load('contrib_ode)$
eqn:x*'diff(y,x)^2-(1+x*y)*'diff(y,x)+y=0;
contrib_ode(eqn,y,x);

will (hope) solved in few days together with 6479 which was supposed to be fixed, but needs more work.
#6479

Component: calculus

Author: robert.marik

Issue created by migration from https://trac.sagemath.org/ticket/7144

@robert-marik robert-marik mannequin added this to the sage-4.2 milestone Oct 6, 2009
@robert-marik robert-marik mannequin added c: calculus labels Oct 6, 2009
@robert-marik robert-marik mannequin assigned burcin Oct 6, 2009
@robert-marik

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@robert-marik robert-marik mannequin added r: duplicate and removed p: minor / 4 labels Oct 7, 2009
@robert-marik robert-marik mannequin closed this as completed Oct 7, 2009
@sagetrac-mvngu
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Mannequin

sagetrac-mvngu mannequin commented Oct 14, 2009

comment:2

Closed as duplicate of #6479.

@sagetrac-mvngu sagetrac-mvngu mannequin removed this from the sage-4.2 milestone Oct 14, 2009
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