First Linear Algebra Subroutines module was included to Mir.

`mir.las.sum` contains Functions and Output Ranges for Summation Algorithms. Works with user-defined types.
  - Precise algorithm: improved analog of Python's `fsum`
  - Pairwise algorithm: fast version for Input Ranges
  - Kahan, KBN, and KB2 algorithms

https://github.com/DlangScience/mir

Ilya