Re: GSOC 2017 Idea Improve logm, sqrtm, funm

[Mithil]

Hello 

Thanks for your reply. This is what I inferred from your response: There are
some slow areas in m file scripts which could be used as a subfunction at
different places and we'd like it to convert it to C++ function as given in
current octave implementation ( like sqrtm.cc ). 

Lastly, would you mind stating other functions we'd like to implement and
also few other questions which I posted? 

Here's what I feel should be included:

1) exponential
2) logarithm
3) square root
4) sine
5) cosine
6) lambert W function
6) sign
7) nth root
 
*These have been discussed here  Nick Higham
<http://www.maths.manchester.ac.uk/%7Ehigham/papers/matrix-functions.php>  
quite extensively. 



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