numerix

https://github.com/ForeverZer0/numerix

Numerix strives to make working with vectors more "Ruby-like", and far exceeds Ruby's built-in implementations many times over in regards to speed and performance. Great care has been take to make the library "interop" friendly, where each class can easily be passed as a "pointer" or binary string for interop with native libraries, using Ruby's Fiddle, FFI, or even Ruby's legacy Win32API. Numerix has been built from the ground-up for Ruby, not playing middle-man between Ruby and an existing library, and is optimized specifically for it, with focus on speed and a robust collection of functionality.