forked from M-Labs/nalgebra
77 lines
2.4 KiB
Markdown
77 lines
2.4 KiB
Markdown
# nalgebra
|
||
|
||
**nalgebra** is a linear algebra library written for Rust targeting:
|
||
|
||
* general-purpose linear algebra (still misses a lot of features…).
|
||
* real time computer graphics.
|
||
* real time computer physics.
|
||
|
||
## Using nalgebra
|
||
All the functionalities of **nalgebra** are grouped in one place: the `na` module.
|
||
This module re-exports everything and includes free functions for all traits methods.
|
||
Free functions are useful if you prefer doing something like: `na::dot(v1, v2)` instead of
|
||
`v1.dot(v2)`.
|
||
|
||
* You can import the whole prelude, including free functions, using:
|
||
|
||
```.rust
|
||
pub use nalgebra::na::*;
|
||
```
|
||
|
||
* If you dont want to import everything but only every trait:
|
||
|
||
```.rust
|
||
pub use nalgebra::traits::*;
|
||
```
|
||
|
||
* If you dont want to import everything but only every structure:
|
||
|
||
```.rust
|
||
pub use nalgebra::structs::*;
|
||
```
|
||
Of course, you can still import `nalgebra::na` alone, and get anything you want using the `na`
|
||
prefix.
|
||
|
||
## Features
|
||
**nalgebra** is meant to be a general-purpose linear algebra library (but is very far from that…),
|
||
and keeps an optimized set of tools for computational graphics and physics. Those features include:
|
||
|
||
* Vectors with static sizes: `Vec0`, `Vec1`, `Vec2`, `Vec3`, `Vec4`, `Vec5`, `Vec6`.
|
||
* Square matrices with static sizes: `Mat1`, `Mat2`, `Mat3`, `Mat4`, `Mat5`, `Mat6 `.
|
||
* Rotation matrices: `Rot2`, `Rot3`, `Rot4`.
|
||
* Isometries: `Iso2`, `Iso3`, `Iso4`.
|
||
* Dynamically sized vector: `DVec`.
|
||
* Dynamically sized (square or rectangular) matrix: `DMat`.
|
||
* A few methods for data analysis: `Cov`, `Mean`.
|
||
* Almost one trait per functionality: useful for generic programming.
|
||
* Operator overloading using the double trait dispatch [trick](http://smallcultfollowing.com/babysteps/blog/2012/10/04/refining-traits-slash-impls/). For example, the following works:
|
||
|
||
```rust
|
||
extern mod nalgebra;
|
||
use nalgebra::na::{Vec3, Mat3};
|
||
|
||
fn main() {
|
||
let v: Vec3<f64> = Zero::zero();
|
||
let m: Mat3<f64> = One::one();
|
||
|
||
let _ = m * v; // matrix-vector multiplication.
|
||
let _ = v * m; // vector-matrix multiplication.
|
||
let _ = m * m; // matrix-matrix multiplication.
|
||
let _ = v * 2.0; // vector-scalar multiplication.
|
||
}
|
||
```
|
||
|
||
## Compilation
|
||
You will need the last rust compiler from the master branch.
|
||
If you encounter problems, make sure you have the last version before creating an issue.
|
||
|
||
git clone git://github.com/sebcrozet/nalgebra.git
|
||
cd nalgebra
|
||
make
|
||
|
||
You can build the documentation on the `doc` folder using:
|
||
|
||
```.rust
|
||
make doc
|
||
```
|