Do we need Mat, Vec, TMmat, Diag, Sym and other matrix types?

[Martin Tschierschke]

On Tuesday, 13 March 2018 at 03:37:36 UTC, 9il wrote:
[...]
> 5. Clever `=` expression based syntax. For example:
>
>    // performs CBLAS call of GEMM and does zero memory 
> allocations
>    C = alpha * A * B + beta * C;
>
[...]
My answer is: Yes.

If D with Lubeck would have such a convenient way to write matrix 
algebra,
using well designed operator overloading, this might attract more 
users.

Unfortunately my own time using this kind of math daily is long 
ago,
but I would like to help as a tester.

I will look in my master thesis and see if I may use Lubeck for 
the calculation done.
I was doing eigenvalue with FEM and in an other project partial 
differential equation with a matrix based approximation schema... 
so this may bring my "gray cells" to work again :-)

I was using a C++ lib with operator overloading resulting in 
quite convenient expressions.
The point that Java has no operator overloading, was the trigger 
for me to dislike the language.  :-)