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OGordoo a83a8389b1 matrix f64 format mistake 3 years ago
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README.md matrix f64 format mistake 3 years ago

README.md

matrix

Instructions

Define a data structure to represent a matrix of any size and implement the basic operations for this. The next steps need to be followed:

  • You can use a 2 dimensional Vec's. We will consider a matrix as a rectangular arrangements of scalars.

  • You have to use the definition of scalars done in the exercise: lalgebra_scalar

  • Then define the associated function identity that returns the identity matrix of size n

  • Finally, define the associated function zero that returns a matrix of size row x col with all the positions filled by zeroes

Notions

Traits

Expected Functions and Structure

pub struct Matrix<T>(pub Vec<Vec<T>>);

impl <T: Scalar<Item = T>> Matrix<T> {
	pub fn new() -> Matrix<T> {
	}

	pub fn zero(row: usize, col: usize) -> Matrix<T> {
	}

	pub fn identity(n: usize) -> Matrix<T> {
	}
}

Usage

Here is a program to test your function.

use matrix::*;

fn main() {
	let m: Matrix<u32> = Matrix(vec![vec![0, 0, 0, 0], vec![0, 0, 0, 0], vec![0, 0, 0, 0]]);
	println!("{:?}", m);
	println!("{:?}", Matrix::<i32>::identity(4));
	println!("{:?}", Matrix::<f64>::zero(3, 4));
}

And its output:

$ cargo run
Matrix([[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]])
Matrix([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]])
Matrix([[0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0]])
$