1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
use na::{DMatrix, DVector};
#[test]
fn empty_matrix_mul_vector() {
// Issue #644
let m = DMatrix::<f32>::zeros(8, 0);
let v = DVector::<f32>::zeros(0);
assert_eq!(m * v, DVector::zeros(8));
}
#[test]
fn empty_matrix_mul_matrix() {
let m1 = DMatrix::<f32>::zeros(3, 0);
let m2 = DMatrix::<f32>::zeros(0, 4);
assert_eq!(m1 * m2, DMatrix::zeros(3, 4));
// Still works with larger matrices.
let m1 = DMatrix::<f32>::zeros(13, 0);
let m2 = DMatrix::<f32>::zeros(0, 14);
assert_eq!(m1 * m2, DMatrix::zeros(13, 14));
}
#[test]
fn empty_matrix_tr_mul_vector() {
let m = DMatrix::<f32>::zeros(0, 5);
let v = DVector::<f32>::zeros(0);
assert_eq!(m.tr_mul(&v), DVector::zeros(5));
}
#[test]
fn empty_matrix_tr_mul_matrix() {
let m1 = DMatrix::<f32>::zeros(0, 3);
let m2 = DMatrix::<f32>::zeros(0, 4);
assert_eq!(m1.tr_mul(&m2), DMatrix::zeros(3, 4));
}
#[test]
fn empty_matrix_gemm() {
let mut res = DMatrix::repeat(3, 4, 1.0);
let m1 = DMatrix::<f32>::zeros(3, 0);
let m2 = DMatrix::<f32>::zeros(0, 4);
res.gemm(1.0, &m1, &m2, 0.5);
assert_eq!(res, DMatrix::repeat(3, 4, 0.5));
// Still works with lager matrices.
let mut res = DMatrix::repeat(13, 14, 1.0);
let m1 = DMatrix::<f32>::zeros(13, 0);
let m2 = DMatrix::<f32>::zeros(0, 14);
res.gemm(1.0, &m1, &m2, 0.5);
assert_eq!(res, DMatrix::repeat(13, 14, 0.5));
}
#[test]
fn empty_matrix_gemm_tr() {
let mut res = DMatrix::repeat(3, 4, 1.0);
let m1 = DMatrix::<f32>::zeros(0, 3);
let m2 = DMatrix::<f32>::zeros(0, 4);
res.gemm_tr(1.0, &m1, &m2, 0.5);
assert_eq!(res, DMatrix::repeat(3, 4, 0.5));
}
|
