mirror of https://github.com/01-edu/public.git
Augusto
4 years ago
4 changed files with 121 additions and 0 deletions
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# This file is automatically @generated by Cargo. |
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# It is not intended for manual editing. |
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[[package]] |
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name = "lalgebra_scalar" |
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version = "0.1.0" |
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[[package]] |
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name = "lalgebra_vector" |
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version = "0.1.0" |
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dependencies = [ |
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"lalgebra_scalar", |
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] |
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[[package]] |
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name = "lalgebra_vector_test" |
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version = "0.1.0" |
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dependencies = [ |
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"lalgebra_vector", |
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] |
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[package] |
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name = "lalgebra_vector_test" |
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version = "0.1.0" |
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authors = ["Augusto <aug.ornelas@gmail.com>"] |
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edition = "2018" |
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html |
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[dependencies] |
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lalgebra_vector = { path = "../../../../rust-piscine-solutions/lalgebra_vector"} |
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// A vector in linear algebra is define as "anything that can be added
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// and that can be multiplied by a scalar"
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// And the associated function dot that calculates the dot product
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// between two vectors
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// let vector = Vector(vec![0,3, 4]);
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// let vector_1 = Vector(vec![0,3,3]);
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// vector.dot(&vector_1) == Some(23);
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// The dot product between two vectors of different length it's not defined
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use lalgebra_vector::Vector; |
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fn main() { |
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let vector_1: Vector<i64> = Vector(vec![1, 3, -5]); |
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let vector_2: Vector<i64> = Vector(vec![4, -2, -1]); |
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println!("{:?}", vector_1.dot(&vector_2)); |
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println!("{:?}", vector_1 + &vector_2); |
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} |
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#[test] |
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fn dot_product() { |
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let vector_1: Vector<i64> = Vector(vec![1, 3, -5]); |
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let vector_2: Vector<i64> = Vector(vec![4, -2, -1]); |
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let expected: i64 = 3; |
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assert_eq!(vector_1.dot(&vector_2), Some(expected)); |
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let vector_1: Vector<i64> = Vector(vec![1, 3, -5]); |
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let vector_2: Vector<i64> = Vector(vec![4, -2]); |
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assert_eq!(vector_1.dot(&vector_2), None); |
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} |
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#[test] |
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fn addition() { |
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let vector_1: Vector<i64> = Vector(vec![1, 3, -5]); |
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let vector_2: Vector<i64> = Vector(vec![4, -2, -1]); |
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assert_eq!(vector_1 + &vector_2, Some(Vector(vec![5i64, 1, -6]))); |
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let vector_1: Vector<i64> = Vector(vec![1, 3, -5]); |
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let vector_2: Vector<i64> = Vector(vec![2, 4, -2, -1]); |
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assert_eq!(None, vector_1 + &vector_2); |
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} |
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## lalgebra_vector |
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### Instructions |
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A vector in linear algebra is define as "anything that can be added and that can be multiplied by a scalar" |
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And the associated function dot that calculates the dot product between two vectors |
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The dot product between two vectors of different length it's not defined |
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Note: `Vector` must implement Debug, Clone, Eq, PartialEq. |
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### Expected Functions and Structure |
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```rust |
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pub struct Vector<T: Scalar>(pub Vec<T>); |
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use std::ops::Add; |
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impl Add for Vector<T> { |
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} |
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impl Vector<T> { |
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pub fn new() -> Self { |
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} |
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pub fn dot(&self, other: &Self) -> Option<T> { |
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} |
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``` |
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### Usage |
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Here is a program to test your function. |
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```rust |
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fn main() { |
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let vector_1: Vector<i64> = Vector(vec![1, 3, -5]); |
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let vector_2: Vector<i64> = Vector(vec![4, -2, -1]); |
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println!("{:?}", vector_1.dot(&vector_2)); |
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println!("{:?}", vector_1 + &vector_2); |
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} |
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``` |
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And its output |
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```console |
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student@ubuntu:~/[[ROOT]]/test$ cargo run |
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Some(3) |
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Some(Vector([5, 1, -6])) |
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tudent@ubuntu:~/[[ROOT]]/test$ |
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``` |
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