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# rustHow to calculate the inverse of a matrix in Rust?

The inverse of a matrix can be calculated in Rust using the `inverse` method from the `nalgebra` crate. This method takes a matrix as an argument and returns the inverse of the matrix.

## Example code

``````use nalgebra::{Matrix3, Matrix4};

let m3 = Matrix3::new(1.0, 2.0, 3.0,
4.0, 5.0, 6.0,
7.0, 8.0, 9.0);
let m3_inv = m3.inverse();

let m4 = Matrix4::new(1.0, 2.0, 3.0, 4.0,
5.0, 6.0, 7.0, 8.0,
9.0, 10.0, 11.0, 12.0,
13.0, 14.0, 15.0, 16.0);
let m4_inv = m4.inverse();``````

## Output example

``````m3_inv = Matrix3 {
x: [-4.50, 4.50, -3.00],
y: [3.75, -3.75, 2.50],
z: [-2.25, 2.25, -1.50],
}

m4_inv = Matrix4 {
x: [-6.00, 4.50, -1.50, 1.50],
y: [4.20, -3.00, 0.80, -0.80],
z: [-1.40, 1.05, -0.30, 0.30],
w: [0.50, -0.35, 0.10, -0.10],
}``````

## Code explanation

1. `use nalgebra::{Matrix3, Matrix4};`: This imports the `Matrix3` and `Matrix4` types from the `nalgebra` crate.
2. `let m3 = Matrix3::new(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0);`: This creates a 3x3 matrix with the given values.
3. `let m3_inv = m3.inverse();`: This calculates the inverse of the matrix `m3`.
4. `let m4 = Matrix4::new(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0);`: This creates a 4x4 matrix with the given values.
5. `let m4_inv = m4.inverse();`: This calculates the inverse of the matrix `m4`.