The package provides a matrix laboratory.
```rust
extern crate matrix;
use matrix::prelude::*;
let mut sparse = Compressed::zero((2, 4)); sparse.set((0, 0), 42.0); sparse.set((1, 3), 69.0);
let dense = Conventional::from(&sparse); assert_eq!(&dense, &matrix![ 42.0, 0.0, 0.0, 0.0; 0.0, 0.0, 0.0, 69.0; ]); ```