M-Labs/nalgebra
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Reformat the reshaping example.

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This commit is contained in:
Crozet Sébastien 2020-10-25 16:02:43 +01:00
parent 5b3da9e2eb
commit 7af509ee8d
1 changed files with 23 additions and 6 deletions
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29
examples/reshaping.rs
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@ -1,11 +1,20 @@
#![cfg_attr(rustfmt, rustfmt_skip)]
extern crate nalgebra as na;
use na::{DMatrix, Dynamic, Matrix2x3, Matrix3x2, U2, U3};
fn main() {
// Matrices can be reshaped in-place without moving or copying values.
let m1 = Matrix2x3::new(1.1, 1.2, 1.3, 2.1, 2.2, 2.3);
let m2 = Matrix3x2::new(1.1, 2.2, 2.1, 1.3, 1.2, 2.3);
let m1 = Matrix2x3::new(
1.1, 1.2, 1.3,
2.1, 2.2, 2.3
);
let m2 = Matrix3x2::new(
1.1, 2.2,
2.1, 1.3,
1.2, 2.3
);
let m3 = m1.reshape_generic(U3, U2);
assert_eq!(m3, m2);
@ -14,15 +23,23 @@ fn main() {
//let m4 = m3.reshape_generic(U3, U3);
// If dynamically sized matrices are used, the reshaping is checked at run-time.
let dm1 = DMatrix::from_vec(
let dm1 = DMatrix::from_row_slice(
4,
3,
vec![1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0],
&[
1.0, 0.0, 0.0,
0.0, 0.0, 1.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0
],
);
let dm2 = DMatrix::from_vec(
let dm2 = DMatrix::from_row_slice(
6,
2,
vec![1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0],
&[
1.0, 0.0, 0.0, 0.0, 0.0, 1.0,
0.0, 0.0, 0.0, 0.0, 1.0, 0.0
],
);
let dm3 = dm1.reshape_generic(Dynamic::new(6), Dynamic::new(2));