#matrix #forms #vector #load #compact #equations #solver

bin+lib colsol

Functions for direct solution of matrix equations for compact form matrices

1 stable release

1.0.0 Oct 30, 2022
0.1.4 Nov 1, 2021
0.1.3 Oct 3, 2021

#1521 in Math


Used in finite_element_method

MIT/Apache

63KB
306 lines

COLSOL

The COLSOL is an active column solver to obtain LDLT of a stiffness matrix or reduce and back-substitute the load vector.

Input variables

A - stiffness matrix stored in compact form.

NN - number of equations.

MAXA - vector containing addresses of diagonal elements of stiffness matrix in A.

V - right-hand side load vector.

Output variables

A - D and L factors of stiffness matrix.

V - displacement vector.

Note: COLSOL can be used only for symmetric and positive definite stiffness matrices.

Storage scheme

storage_scheme

No runtime deps