Spire
Spire is a numeric library for Scala which is intended to be generic,
fast, and precise.
Using features such as specialization, macros, type classes, and
implicits, Spire works hard to defy conventional wisdom around
performance and precision trade-offs. A major goal is to allow
developers to write efficient numeric code without having to "bake in"
particular numeric representations. In most cases, generic
implementations using Spire's specialized type classes perform
identically to corresponding direct implementations.
