A rust library to calculate the approximate Shannon entropy of a slice.
Usable on no_std due to use of approximate natural log from micromath.
Add this to your Cargo.toml
[dependencies]
approx_shannon_entropy = "0.1.1"
$ cargo run --example three_bits
Shannon Entropy (approximate bits per byte): 1
$ cargo build --example stdin_entropy
$ echo A | ./target/debug/examples/stdin_entropy