Dirk Laurie on Sat, 22 Sep 2012 06:33:10 +0200


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Re: forprime 

2012/9/21 Karim Belabas <Karim.Belabas@math.u-bordeaux1.fr>:


> (We could apply transcendental functions to
> square matrices with their usual mathematical meanings instead of
> current componentwise computation, but nobody ever requested this... :-)

That is a can of worms.  Even exp(A) when A is a matrix of floating-point
numbers is notorious ("Nineteen dubious ways to compute the exponential
of a matrix").