[Usage]: Typed Linear Algebra: Interoperability with std::linalg and Eigen

[FrancoisCarouge]

Organization Type

Individual Developer

Organization Name (Optional)

FrancoisCarouge/TypedLinearAlgebra

Primary Domain/Industry

Research & Development

Other Domain (if selected above)

No response

Project Stage

Research/Academic

Development Team Size

Small team (2-5)

Use Case Description

We use the mp-units facilities as one of the strong types in our typed linear algebra tests and samples. The usage demonstrates how the library composes the Eigen or std::linalg linear algebra backends with the level of safeties, ergonomics, and facilities of the mp-units library. [GitHub] [Slides]

Example with mp-units and Eigen:

state x{3. * m,
        2. * m / s,
        1. * m / s2};

std::println("{}", x * transposed(x));

// [[9 m²,    6 m²/s,  3 m²/s²],
//  [6 m²/s,  4 m²/s², 2 m²/s³],
//  [3 m²/s², 2 m²/s³, 1 m²/s⁴]]

Features Used

• Basic quantity arithmetic (addition, subtraction, multiplication, division)
• Unit conversions (m to km, s to h, etc.)
• Dimensional analysis and compile-time validation
• Custom units and dimensions
• Quantity points
• Text formatting and I/O
• C++ modules support
• Interoperability with other libraries
• SI unit system
• Other unit systems (CGS, Imperial, etc.)
• Natural units
• Freestanding mode

Key Benefits Experienced

• The idiomatic, canonical, and modern standard C++ ergonomics implemented in the mp-units library made its discovery, learning, integration, usage, and troubleshooting an easy, even pleasant experience.
• The compile-time dimensional analysis was instrumental in identifying implementation defects in the project.
• The formatting, printing support worked, composed in the project out of the box.

Impact on Your Project

Very helpful - Significant improvements

Usage Permissions

• You can use our testimonial in documentation and presentations
• You can mention our organization name publicly

[mpusz]

Thank you!