# Improvements to special functions in Sage

Thus far in my Google Summer of Code project, the following tickets I have submitted patches to and need review:

- #2516: generalized hypergeometric functions should be implemented
- #12521: evaluate log gamma for complex input
- #15024: Add Hankel functions and make spherical Bessel and Hankel functions symbolic
- #14984: Cannot plot functions that use mpmath if complex numbers occur in the image
- #15017: Symbolic spherical harmonic
- #14896: Implement symbolic confluent hypergeometric functions
- #14858: Type checks in arith.py
- #14996: Improve support for Jacobi elliptic functions
- #15046: Symbolic elliptic integrals
- #15030: Switch standard 2D plotting from
`fast_float`

to`fast_callable`

- #14694: Update SymPy to 0.7.3
- #15057: SymPy conversions for symbolic functions that are missing them