lauchli

the (N + 1) x (N) matrix [ones(1,n); mu*eye(n)]. Well-known example in least squares of the
 danger of forming t(A)

Generates a variety of structured test matrices commonly used in numerical linear algebra and computational experiments. Includes well-known matrices for benchmarking and testing the performance, stability, and accuracy of linear algebra algorithms. Inspired by 'MATLAB' 'gallery' functions.

Thomas Hsiao

gallery

Generate Test Matrices for Numerical Experiments

lauchli function

<dl><dt>n</dt>
<dd>number of columns</dd>
<dt>mu</dt>
<dd>constant applied to identity</dd>
<dt>sparse</dt>
<dd>whether matrix should be sparse</dd></dl>

Arguments

Create Lauchli Matrix — lauchli

<dl>

<dt>n</dt>
<dd>number of columns</dd>


<dt>mu</dt>
<dd>constant applied to identity</dd>


<dt>sparse</dt>
<dd>whether matrix should be sparse</dd>

</dl>

lauchli: Create Lauchli Matrix

Description

Usage

Value

Arguments