wiki:symbolics

Version 28 (modified by ppurka, 13 months ago) (diff)

add #12798

This page gives an overview of open symbolics issues.

If you notice a symbolics or calculus issue that is not listed on this page, feel free to add it to the relevant section below.

Symbolic functions have their own page. There is also a  wiki page to coordinate work on new symbolics functionality. Pynac bugs are tracked in  the bitbucket issue tracker.

Links:

Solve tickets:

  • Bugs or hangs
  • Spurious/missed solutions
  • Bugs in interpreting output
    • #8969 - != in inputting and outputting with Maxima not handled right
  • Enhancements
    • #5201 - matrices as input
    • #10444 - make solve documentation better
  • Change defaults/interface
    • #10213 - default solution_dict
    • #6231 - what to do with systems and multiplicities
    • #10750

Integration tickets:

  • Unnecessary interaction
  • Changing interface
    • #2787 - change to integrate(f,(x,a,b))
    • #7763 - unify interface for numerical integration
  • Change evalf for integrals to take high precision

simplify tickets:

  • #3520 - simplify_radical does weird things
  • #11656 - additional assumptions needed for simplification
  • #11785 - simplifying complex exponentials needs rectform
  • #10268 - add Ginac method to simplify_rational
  • #12322 - invalid simplification of complex logarithm

desolve tickets:

  • #9421 - if c is already a variable it shouldn't come out as a constant
  • #9824 - improve desolve system documentation for initial conditions
  • #9825 - Maxima temporary variables from diffeq confuse Sage
  • #8616 - get desolve to automatically deduce variables

limit and summation tickets:

limitations of Piecewise functions

evaluation on numpy objects:

other