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feat: documents matrix methods

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This commit is contained in:
Volodymyr Orlov
2020-09-06 18:27:11 -07:00
parent 1e3ed4c924
commit bbe810d164
25 changed files with 587 additions and 245 deletions
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src/linalg/svd.rs
+10 -9
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@@ -428,7 +428,7 @@ mod tests {
#[test]
fn decompose_symmetric() {
let A = DenseMatrix::from_array(&[
let A = DenseMatrix::from_2d_array(&[
&[0.9000, 0.4000, 0.7000],
&[0.4000, 0.5000, 0.3000],
&[0.7000, 0.3000, 0.8000],
@@ -436,13 +436,13 @@ mod tests {
let s: Vec<f64> = vec![1.7498382, 0.3165784, 0.1335834];
let U = DenseMatrix::from_array(&[
let U = DenseMatrix::from_2d_array(&[
&[0.6881997, -0.07121225, 0.7220180],
&[0.3700456, 0.89044952, -0.2648886],
&[0.6240573, -0.44947578, -0.639158],
]);
let V = DenseMatrix::from_array(&[
let V = DenseMatrix::from_2d_array(&[
&[0.6881997, -0.07121225, 0.7220180],
&[0.3700456, 0.89044952, -0.2648886],
&[0.6240573, -0.44947578, -0.6391588],
@@ -459,7 +459,7 @@ mod tests {
#[test]
fn decompose_asymmetric() {
let A = DenseMatrix::from_array(&[
let A = DenseMatrix::from_2d_array(&[
&[
1.19720880,
-1.8391378,
@@ -523,7 +523,7 @@ mod tests {
3.8589375, 3.4396766, 2.6487176, 2.2317399, 1.5165054, 0.8109055, 0.2706515,
];
let U = DenseMatrix::from_array(&[
let U = DenseMatrix::from_2d_array(&[
&[
-0.3082776,
0.77676231,
@@ -589,7 +589,7 @@ mod tests {
],
]);
let V = DenseMatrix::from_array(&[
let V = DenseMatrix::from_2d_array(&[
&[
-0.2122609,
-0.54650056,
@@ -660,9 +660,10 @@ mod tests {
#[test]
fn solve() {
let a = DenseMatrix::from_array(&[&[0.9, 0.4, 0.7], &[0.4, 0.5, 0.3], &[0.7, 0.3, 0.8]]);
let b = DenseMatrix::from_array(&[&[0.5, 0.2], &[0.5, 0.8], &[0.5, 0.3]]);
let expected_w = DenseMatrix::from_array(&[&[-0.20, -1.28], &[0.87, 2.22], &[0.47, 0.66]]);
let a = DenseMatrix::from_2d_array(&[&[0.9, 0.4, 0.7], &[0.4, 0.5, 0.3], &[0.7, 0.3, 0.8]]);
let b = DenseMatrix::from_2d_array(&[&[0.5, 0.2], &[0.5, 0.8], &[0.5, 0.3]]);
let expected_w =
DenseMatrix::from_2d_array(&[&[-0.20, -1.28], &[0.87, 2.22], &[0.47, 0.66]]);
let w = a.svd_solve_mut(b);
assert!(w.approximate_eq(&expected_w, 1e-2));
}