#17739: enhance desolve output from separable ODEs
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Reporter: rws | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.5
Component: calculus | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: Not yet reported upstream; | Work issues:
Will do shortly. | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by rws):
So, the inconsistency is in Sage, which removes 'y==' from the results
that have it, perhaps to facilitate further usage of the expression.
{{{
if is_SymbolicEquation(soln) and soln.lhs() == dvar:
# Remark: Here we do not check that the right hand side does not
depend on dvar.
# This probably will not hapen for soutions obtained via ode2,
anyway.
soln = soln.rhs()
}}}
We could now either remove the snippet, in order to always get an
equation, or always try to solve for `dvar` and return an equation only
when no solution is found.
--
Ticket URL: <http://trac.sagemath.org/ticket/17739#comment:5>
Sage <http://www.sagemath.org>
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