Z Table

This crate provides lookup functions for the standard normal table, also called Z table. Because the lookup functions are const, they can be evaluated at compile time.

Example

```rust use ztable::lookupwith;

fn main() { // Some birth weights newborns in kg. let birthweights: [f32; 5] = [2.5, 2.7, 3.1, 3.4, 3.6]; let n = birthweights.len() as f32; // Calculate the average weight of a newborn. let mean: f32 = birthweights.iter().sum::() / n; // Calculate the variance and standard derivation. let variance: f32 = birthweights.iter().map(|x| x.powi(2)).sum::() / n - mean.powi(2); let standard_derivation = variance.sqrt();

println!(
    "The probability of a newborn to weight more than 3.5 kg is {}%",
    (1.0 - lookup_with(3.5, mean, standard_derivation)) * 100.0
);

}

```