basic/
basic.rs

1use matrijs::{matrix, Matrix};
2
3// From the README.
4fn main() {
5    // The matrix! macro allows for quick initialization.
6
7    // m = | 0.0  1.0 |
8    //     |-1.0  0.0 |
9    let mut m = matrix![0.0, 1.0; -1.0, 0.0];
10
11    // Scalar math.
12    m += 1.0;
13    m *= -10.0;
14
15    // You can also create a Matrix manually.
16    let m_expected = Matrix::new(2, 2, &[-10.0, -20.0, 0.0, -10.0]);
17    assert_eq!(m, m_expected);
18
19    // a = | 0.0  1.0 |
20    //     | 2.0  3.0 |
21    // b = | 4.0  5.0  6.0 |
22    //     | 7.0  8.0  9.0 |
23    let a = matrix![0.0, 1.0; 2.0, 3.0];
24    let b = matrix![4.0, 5.0, 6.0; 7.0, 8.0, 9.0];
25
26    // The dot product of `i` and `a` should be equal to `a` (idempotence).
27    let i = Matrix::identity(2);
28    assert_eq!(i.dot(&a), a);
29
30    assert_eq!(a.dot(&b), matrix![7.0, 8.0, 9.0; 29.0, 34.0, 39.0]);
31
32    // You can append rows and columns to expand what you're working with.
33    let mut ones = Matrix::one(2, 2);
34    ones.append_row(matrix![0.0, 0.0].array());
35
36    assert_eq!(
37        ones,
38        matrix![
39            1.0, 1.0;
40            1.0, 1.0;
41            0.0, 0.0
42        ]
43    );
44
45    // When in doubt, take a look at the shape of the matrix.
46    assert_eq!(ones.shape(), (3, 2)) // 3 rows, 2 columns
47}
basic/basic.rs

basic/
basic.rs
