NuMojo

NuMojo is a library for numerical computing in Mojo 🔥 similar to NumPy, SciPy in Python.

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Table of Contents

1. About The Project
   • What NuMojo is
   • What NuMojo is not
Goals/Roadmap
• Long term goals
2. Usage
3. How to install
4. Contributing
5. Warnings
6. License
7. Acknowledgments

About the project

What NuMojo is

NuMojo intends to capture a wide swath of numerics capability present in the Python packages NumPy, SciPy and Scikit.

NuMojo intends to try and get the most out of the capabilities of Mojo including vectorization, parallelization, and GPU acceleration(once available). Currently, NuMojo extends (most of) the standard library math functions to work on array inputs.

We intend NuMojo to be a building block for other Mojo packages that need fast math under the hood without the added weight of a ML back and forward propagation system

What NuMojo is not

NuMojo is not a machine learning library, it will never include back-propagation in the base library.

Goals / Roadmap

For a detailed roadmap, please refer to the Roadmap.md file.

Our main goal is to implement a fast, comprehensive numerics library in Mojo. Following are some brief long-term goals,

Long term goals

• Linear Algebra
  • Native n-dimensional array types
  • Vectorized, Parallelized math operations
  • Array manipulation - vstack, slicing, concat etc.
• Calculus
  • Integration & Derivatives etc
• Optimizers
• Function approximators
• Sorting

Usage

An example goes as follows.

import numojo as nm
from numojo.prelude import *

fn main() raises:
    # Generate two 1000x1000 matrices with random float64 values
    var A = nm.random.randn[f64](shape=List[Int](1000, 1000))
    var B = nm.random.randn[f64](shape=List[Int](1000, 1000))

    # Generate a 3x2 matrix from string representation
    var X = nm.fromstring[f32]("[[1.1, -0.32, 1], [0.1, -3, 2.124]]")

    # Print array
    print(A)

    # Array multiplication
    var C = A @ B

    # Array inversion
    var I = nm.inv(A)

    # Array slicing
    var A_slice = A[1:3, 4:19]

    # Get scalar from array
    var A_item = A.item(291, 141)

Please find all the available functions here

How to install

There are two approach to install and use the Numojo package.

Build package

This approach invovles building a standalone package file mojopkg.

1. Clone the repository.
2. Build the package using mojo package numojo
3. Move the numojo.mojopkg into the directory containing the your code.

Include NuMojo's path for compiler and LSP

This approach does not require buiding a package file. Instead, when you compile your code, you can include the path of NuMojo reporsitory with the following command:

mojo run -I "../NuMojo" example.mojo

This is more flexible as you are able to edit the NuMojo source files when testing your code.

In order to allow VSCode LSP to resolve the imported numojo package, you can:

1. Go to preference page of VSCode.
2. Go to Mojo › Lsp: Include Dirs
3. Click add item and write the path where the Numojo repository is located, e.g. /Users/Name/Programs/NuMojo.
4. Restart the Mojo LSP server.

Now VSCode can show function hints for the Numojo package!

Contributing

Any contributions you make are greatly appreciated. For more details and guidelines on contributions, please check here

Warnings

This library is still very much a work in progress and may change at any time.

License

Distributed under the Apache 2.0 License with LLVM Exceptions. See LICENSE and the LLVM License for more information.

Acknowledgements

• Built in native Mojo which was created by Modular