Isuru Fernando comments

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                                            Isuru Fernando

DON'T MERGE: Example matching decision trees for sample patterns

https://github.com/tonbit/coroutine is a small header only library implementing coroutines supporting linux, osx and windows

Inconsistent behaviour of ImmutableMatrix

Agree with all of the above. PRs are welcome.

SymEngine.Basic in struct

@zhaoli-IHEP, we create julia objects from symengine C objects as necessary. Therefore `expr` and `(expr+2)-2` are two different objects, but `==` operator is overloaded to compare. You'll have to overload...

not throw error but crash when assign an expression to array

I can't reproduce this. ```julia julia> using SymEngine julia> @vars a (a,) julia> b = zeros(2) 2-element Array{Float64,1}: 0.0 0.0 julia> b[1]=a ERROR: ArgumentError: symbolic value cannot be evaluated to...

'FunctionSymbol' object has no attribute 'name'

There's the `get_name` function. See https://github.com/symengine/symengine.py/blob/master/symengine/lib/symengine_wrapper.pyx#L2626 PRs welcome to add a `name` property.

How to check whether Boolean formula is a tautology

There's no such functionality yet.

coeff not producing correct output

I think I fixed this in https://github.com/symengine/symengine/commit/c853166c1e5cada03a07112c5fca89de991ba14b

Use caching in travis-ci

See https://github.com/symengine/symengine/pull/1271/files

Feature request: Piecewise expressions

It should be possible. We first need to wrap the C++ function in C and then expose it here in the julia code. I don't have time at the moment...

Feature request: Piecewise expressions

Yes, relationals have to be implemented as well.