Struct sparse21::Matrix

pub struct Matrix { /* fields omitted */ }

Sparse Matrix

Methods

impl Matrix

pub fn new() -> Matrix

Create a new, initially empty Matrix

pub fn from_entries(entries: Vec<(usize, usize, f64)>) -> Matrix

Create a new Matrix from a vector of (row, col, val) entries.

pub fn identity(n: usize) -> Matrix

Create an n*n identity Matrix

pub fn add_element(&mut self, row: usize, col: usize, val: f64)

Add an element at location (row, col) with value val.

pub fn add_elements(&mut self, elements: Vec<(usize, usize, f64)>)

Add elements correspoding to each triplet (row, col, val) Rows and columns are usize, and vals are f64.

pub fn get(&self, row: usize, col: usize) -> Option<f64>

Returns the Element-value at (row, col) if present, or None if not.

pub fn solve(&mut self, rhs: Vec<f64>) -> Result<Vec<f64>, &'static str>

Solve the system Ax=b, where:

• A is self
• b is argument rhs
• x is the return value.

Returns a Result containing the Vec<f64> representing x if successful. Returns an Err if unsuccessful.

Performs LU factorization, forward and backward substitution.