# GSoC : This week in SymPy #8

Hi there! It’s been eight weeks into GSoC . Here is the Progress for this week.

### Progress of Week 8 This week, my PR for making `invert_real` more robust was Merged, along with these:

• PR #9628 : Make `invert_real` more robust

• PR #9668 : Support solving for Dummy symbols in `linsolve`

• PR #9666 : Equate `S.Complexes` with `ComplexPlane(S.Reals*S.Reals)`

Note: We renamed `S.Complex` to `S.Complexes`, which is analogous with `S.Reals` as suggested by @jksuom.

I also opened PR #9671 for Simplifying ComplexPlane output when ProductSet of FiniteSets are given as input: `ComplexPlane(FiniteSet(x)*FiniteSet(y))`, It was earlier simplified to:

``````ComplexPlane(Lambda((x, y), x + I*y), {x} x {y})
``````

It isn’t very useful to represent a point or discrete set of points in `ComplexPlane` with an expression like above. So in the above PR it is now simplified as `FiniteSet` of discrete points in `ComplexPlane`:

``````In : ComplexPlane(FiniteSet(a, b, c)*FiniteSet(x, y, z))
Out: {a + I*x, a + I*y, a + I*z, b + I*x, b + I*y, b + I*z, c + I*x, c + I*y, c + I*z}
``````

It’s awaiting Merge, as of now.

Now, I have started replacing `solve` with `solveset` and `linsolve`.

### from __future__ import plan Week #9:

This week I plan to Merge my pending PR’s & work on replacing old `solve` in the code base with `solveset`.

### \$ git log

• PR #9710 : Replace solve with solveset in `sympy.stats`
• PR #9708 : Use solveset instead of solve in `sympy.geometry`
• PR #9671 : Simplify `ComplexPlane({x}*{y})` to `FiniteSet(x + I*y)`
• PR #9668 : Support solving for Dummy symbols in linsolve
• PR #9666 : Equate S.Complexes with `ComplexPlane(S.Reals*S.Reals)`
• PR #9628 : Make invert_real more robust
• PR #9587 : Add Linsolve Docs
• PR #9500 : Documenting `solveset`

That’s all for now, looking forward for week #9. :grinning: