Libmir Archive

Community documentation archive for Mir — the D language numerical computing library ecosystem.

Unofficial archive

This site is a community-maintained archive, not the official Mir project. Content is derived from the open-source libmir GitHub organization under Apache-2.0. Maintainer 9il stated in issue #481 that the community is free to host docs elsewhere — this is that effort.

What is Mir?

Mir is a collection of D language libraries for numerical computing, scientific programming, and high-performance data manipulation. Originally developed by Ilia Ki (9il) and contributors, Mir provides:

ndslice — N-dimensional array slices with NumPy-like semantics
Algebraic types — Type-safe tagged unions and variants
Optimization — Nonlinear least-squares and gradient-based solvers
Serialization — Fast ION binary and JSON I/O
Random — High-quality statistical distributions
BetterC support — Core libraries work without the D runtime or GC

Library index

mir-algorithm

ndslice, functional iteration, multidimensional arrays. The core Mir library.

mir-core

Algebraic types, sumtype, universal reflection, basic math.

mir-random

Random number generation and statistical distributions.

mir-optim

Optimization algorithms: nonlinear least-squares, L-BFGS.

mir-ion

Fast ION binary / JSON serialization for D.

Tutorials

Guides: ndslice vs NumPy, BetterC programming, numerical computing in D.

Quick status

Library	Last commit	DUB latest	Status
mir-algorithm	Feb 2026	v3.22.4	Active
mir-core	Feb 2026	latest	Active
mir-random	Jun 2026	latest	Active
mir-optim	May 2025	latest	Active
mir-ion	Nov 2025	latest	Active
lubeck	Jul 2023	—	Dormant

Getting started

Add any Mir library to a DUB project:

// dub.sdl
dependency "mir-algorithm" version="~>3.0"
dependency "mir-core" version="~>1.0"

Or with dub.json:

{
  "dependencies": {
    "mir-algorithm": "~>3.0",
    "mir-core": "~>1.0"
  }
}