# bandsolpd¶

## Purpose¶

Solves the system of equations $$Ax = b$$ for x, where A is a positive definite banded matrix.

## Format¶

x = bandsolpd(b, A)
Parameters: b (KxM matrix) – A (KxN compact form matrix) – x (KxM matrix) –

## Remarks¶

A is a positive definite banded matrix in compact form. See band() for a description of the format of A.

b can have more than one column. If so, $$Ax = b$$ is solved for each column. That is,

$A*x[.,i] = b[.,i]$