lnexp 0.2.1

Carefully evaluate compositions of log, exp, log1p and expm1
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# lnexp

[![crate](https://img.shields.io/crates/v/lnexp.svg)](https://crates.io/crates/lnexp)
[![documentation](https://docs.rs/lnexp/badge.svg)](https://docs.rs/lnexp)

## Usage
Add this to your `Cargo.toml`:

```toml
[dependencies]
lnexp = "0.2"
```

## Description

Provides a trait (`LnExp`) for floating-point types to perform careful
evaluation of compositions of `ln`, `ln_1p`, `exp` and `exp_m1`.
Implementations are provided for `f64` and `f32`; see the
documentation for details.  The most common domain in which such
compositions appear is statistical computing, but the advantages
afforded by the implementations are neither specific nor limited to
such a domain.

## License

Licensed under either of

  * [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
  * [MIT license](http://opensource.org/licenses/MIT)

at your option.

## Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.

## Citations
- [Martin Maechler (2012), Accurately Computing log(1 − exp(− |a|))](http://cran.r-project.org/web/packages/Rmpfr/vignettes/log1mexp-note.pdf)
- [cossio (2022), untitled](https://github.com/JuliaStats/LogExpFunctions.jl/files/8218470/log1pexp.pdf)