[GSOC2020] [Boost.uBLAS]

Hi, I am intrested in coverting uBLAS to C++20.
I have finished the programming test and really feel the efficiency of
experssion template when doing matrix
computation. But I still have some questions about this theme. 
1.I am not sure what kind of new features are more likely to be used and why
will we use it
2.What's the version of C++ of uBLAS now
3.Is that ok if I send email directly to potential mentors
4.reconstitution is a systematic work, I want to get some help to start this
work



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