Function dzahui::solvers::fem::utils::tridiagonal_matrix_vector_multiplication

source · 
pub fn tridiagonal_matrix_vector_multiplication(
    a: &Array2<f64>,
    b: &Array1<f64>,
    c: f64
) -> Result<Array1<f64>, Error>
Expand description

General Information

Matrix - vector multiplication for a tridiagonal system reducing number of operations from n^2 to 3n

Parameters

  • a - a tridiagonal matrix
  • b - a vector of the same length as any axis of the matrix