#6479: [with patch, needs work] desolve for 2nd order ODE with initial condition
gives wrong answer
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Reporter: gmhossain | Owner: burcin
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.2
Component: calculus | Keywords:
Work_issues: | Author:
Reviewer: | Merged:
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Changes (by wdj):
* status: needs_review => needs_work
Comment:
The improvements are *fantastic*!
However, some of the docstrings do not follow proper format.
For example, in your desolve_rk4 function, you do not indent
the Sage code in the EXAMPLES section correctly. Also, if a
function can produce different types of output (eg, a plot or
a list of points, depending on the optional parameters), both
should be illustrated in the examples. I don't know if this
improper formatting screws up the sage -test script or not.
There is also some improper indentation in other sections,
such as OUTPUT, for functions such as desolve_rk4, for example.
I hope you can please fix these.
A request: in your new functions desolve_rk4 and desolve_system_rk4
there is an option called endpoint, with default value 10. I would
prefer an option called endpoints with a default value of [0,10]
(or something), so that a range can be plotted other than from
ics[0] to endpoint. If it is too much hassle, fine (you can just add
plots together to get that anyway...).
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6479#comment:10>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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