SymPy 1.1 is released

[Aaron Meurer]

I'm happy to announce that SymPy 1.1 has been released. You can install it with

pip install -U sympy

It also be available via conda soon.

This is a major release of SymPy, with many major changes since the
previous version, 1.0. The release notes are at
https://github.com/sympy/sympy/wiki/Release-Notes-for-1.1 (note, at
the time of this writing, these are still being updated).

Please report any bugs you find in our issue tracker
https://github.com/sympy/sympy/issues

Some highlights (if I am missing anything major, please let me know
and update the release notes page):

- Many improvements to code generation, including addition of
tensorflow (to lambdify), C++, llvm JIT, and Rust language support, as
well as the beginning of AST classes.

- Experimental support for SymEngine as a symbolic core in the
sympy.physics.mechanics module (set the environment variable
USE_SYMENGINE=1).

- A reworking of the internals of the matrices module.

- Several bug fixes for floating point numbers using higher than the
default precision.

In addition, several improvements from the 2016 Google Summer of Code
projects, including:

- A new holonomic submodule, for computing with holonomic functions
(Shubham Tibra's GSoC project).

- Improvements to the group theory module (Gaurav Dhingra's GSoC project).

- Improvements to the solvers and solveset (Shekhar Prasad Rajak and
Kshitij Saraogi's GSoC projects).

- Implementation of Singularity Functions to solve Beam Bending
problems (Sampad Kumar Saha's GSoC project).

- Improvements to the mechanics module (James Brandon Milam's GSoC project).

Thank you to everyone who contributed to this release. A full list of
people who contributed is at
https://github.com/sympy/sympy/wiki/Release-Notes-for-1.1#authors. A
total of 184 people contributed to this release. Of these, 143 people
contributed to SymPy for the first time for this release.

Aaron Meurer

[Aaron Meurer]

Oh, I almost forgot something very important. A huge thanks to
NumFOCUS for providing funding for me to do this release. Without it,
we would not be seeing this release right now.

Please support NumFOCUS (http://numfocus.org/). They provide very
important support to a wide range of open source scientific projects,
including SymPy.

Aaron Meurer

[Ondřej Čertík]

Thank you NumFOCUS and thank you Aaron for making this happen!

Ondrej

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