DIP80: phobos additions

[jmh530 via Digitalmars-d]

On Friday, 12 June 2015 at 17:56:53 UTC, Tofu Ninja wrote:

> Matrix math is matrix math, it being for ogl makes no real 
> difference.

I think it’s a little more complicated than that. BLAS and LAPACK 
(or variants on them) are low-level matrix math libraries that 
many higher-level libraries call. Few people actually use BLAS 
directly. So, clearly, not every matrix math library is the same. 
What differentiates BLAS from Armadillo is that you can be far 
more productive in Armadillo because the syntax is friendly (and 
quite similar to Matlab and others).

There’s a reason why people use glm in C++. It’s probably the 
most productive way to do matrix math with OpenGL. However, it 
may not be the most productive way to do more general matrix 
math. That’s why I hear about people using Armadillo, Eigen, and 
Blaze, but I’ve never heard anyone recommend using glm. Syntax 
matters.