Crate spec_math

This crate contains approximations for a set of mathematical functions commonly referred to as “special functions”. The goal of this crate is to eventually contain a full Rust re-implementation of the CEPHES library with minimal changes in modules such as the cephes64 module. The special functions will also be available as traits for easier use in Rust, potentially with modifications to correct bugs or improve performance from the original CEPHES implementation.

Currently, the error functions, gamma functions, beta functions, fresnel integrals, sine and cosine integrals, elliptic integrals, and bessel functions are implemented.

Modules

• cephes64
  Functions from the CEPHES library re-implemented in Rust for f64.
• misc
• utils

Structs

• AiryOutput
• EllipJOutput
• FresnelOutput
• SiCiOutput

Traits

• Bessel
  Implementations of Bessel functions as a trait
• Beta
  Implementations of beta functions as a trait
• Dawson
  Implementations of Dawson integral as a trait
• Ellip
  Implementations of elliptic integrals as a trait
• Erf
  Implementations of error functions as a trait
• Fresnel
  Implementations of Fresnel integrals as a trait
• Gamma
  Implementations of gamma functions as a trait
• NormDist
  Implementations of Normal (Gaussian) distribution as a trait
• SiCi
  Implementations of sine and cosine integrals as a trait
• Zeta
  Implementations of zeta functions as a trait