This week I started work on writing the series module for symengine. I am working with Sumith on Polynomials on PR 511. It is still a work in progress. A lot of the code, especially related to Piranha was new to me, so I had to read a lot. I got a PR 533 merged which uses templates to simplify code for equality and comparison of maps.
With regard to PR 9614, I had a
meeting with my mentor Thilina. We decided that we should be able to call the
RingSeries
function on SymPy Basic
expressions so that the user need not
bother about creating rings and all the extra function calls. So, I will be
building on top of the classes I created earlier to make the series
method
accept Basic
expressions. I created RingFunction
, RingMul
and RingAdd
classes. The taylor_series
method now works with sums and products of
functions. However, it is still not optimised, especially with series that have
a low minimum exponent (say cos). I need to find a better way.
I returned to college. Once classes begin from Monday I will need to manage my time well as my schedule will get busier.
Next Week

Finish the Polynomials PR.

Further optimise the
taylor_series
method to work in all cases. 
Start writing a
series
method that works withBasic
expressions.
I think it is good to have the flexibility to work with Basic
objects as that
integrates the ring_series
module better with the existing series
infrastructure of SymPy. At the end of day, we want maximum number of people to
benefit from using the code.
Cheers!