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) –
Returns:

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,

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