1 unstable release
0.1.0 | Mar 4, 2024 |
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#2469 in Algorithms
19KB
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Diagonal Operations
This Rust module provides functions to perform operations on diagonals in matrices. It includes functions for extracting diagonals with positive slope, diagonals with positive and negative slope, as well as straight rows and columns.
Diagonals with Positive Slope (Bottom-Left to Top-Right)
The diagonal_pos_pos
function extracts diagonals with positive slope from a matrix starting from the bottom-left corner (x: maximum, y: 0).
Example
use diagonal::diagonal_pos_pos;
let matrix = vec![
vec![1, 2, 3],
vec![4, 5, 6],
vec![7, 8, 9],
];
let result = diagonal_pos_pos(&matrix);
assert_eq!(result, vec![
vec![&7],
vec![&4, &8],
vec![&1, &5, &9],
vec![&2, &6],
vec![&3],
]);
Diagonals with Positive and Negative Slope (Top-Left to Bottom-Right and Bottom-Left to Top-Right)
The diagonal_pos_neg
function extracts diagonals with positive and negative slope from a matrix starting from the top-left corner (x & y: 0).
Example
use diagonal::diagonal_pos_neg;
let matrix = vec![
vec![1, 2, 3],
vec![4, 5, 6],
vec![7, 8, 9],
];
let result = diagonal_pos_neg(&matrix);
assert_eq!(result, vec![
vec![&1],
vec![&2, &4],
vec![&3, &5, &7],
vec![&6, &8],
vec![&9],
]);
Straight Rows and Columns
The straight_x
and straight_y
functions extract elements from a matrix in row-major and column-major orders, respectively.
Example
use diagonal::{straight_x, straight_y};
let matrix = vec![
vec![1, 2, 3],
vec![4, 5, 6],
vec![7, 8, 9],
];
let result_x = straight_x(&matrix);
assert_eq!(result_x, vec![
vec![&1, &2, &3],
vec![&4, &5, &6],
vec![&7, &8, &9],
]);
let result_y = straight_y(&matrix);
assert_eq!(result_y, vec![
vec![&1, &4, &7],
vec![&2, &5, &8],
vec![&3, &6, &9],
]);
The provided functions enable convenient extraction and manipulation of matrix diagonals, making it easier to perform various operations on matrix elements.
Getting Started
To use this module, add the diagonal
crate to your Cargo.toml
file:
[dependencies]
diagonal = "0.1.0"
Now, you can import the necessary functions and start working with matrix diagonals in Rust!