Crate fast_math [−] [src]
Fast, approximate versions of mathematical functions.
This crate includes implementations of "expensive" mathematical functions that are much faster, at the expense of some accuracy. All functions have good guarantees on accuracy to some degree (both relative and absolute).
Installation
Add this to your Cargo.toml
[dependencies]
fast-math = "0.1"
Examples
let x = 10.4781; let approx = fast_math::log2(x); let real = x.log2(); // they should be close assert!((approx - real).abs() < 0.01);
Functions
log2 |
Compute a fast approximation of the base-2 logarithm of |
log2_raw |
Compute a fast approximation of the base-2 logarithm of positive,
finite, non-denormal |