# Gershgorin Circles

Displays Gershgorin circles and eigenvalues for $3 \times 3$ to $8 \times 8$ matrices, preset or random.

Identifier:
http://demonstrations.wolfram.com/GershgorinCircles/
Rating:
Creator(s):
Chris Maes
Cataloger:
David Poole
Publisher:
Wolfram Demonstrations Project
Rights:
Chris Maes and Wolfram Research
Format Other:
Requires down loading the CDF player from Wolfram (https://www.wolfram.com/cdf-player/).

## Comments

### displays Gerschgorin circles associated with 3x3 to 8x3 matrices

This applet displays the Gerschgorin circles assocaited with $3\times3$ to $8\times8$ matrices. Pre-defined or random matrices acan be selected. User-defined matrices are not possible. Unfortunately the eigenvalues are not displayed numerically, nor are the values of the Gerschgorin radii.

### Could be more useful

This would be much more useful if we knew what the matrix was.