File Exchange

image thumbnail

Trajectories of eigenvalues

version (2.9 KB) by Emanuele Natale
Program that plots the changing eigenvalues obtained progressively adding a matrix B to a matrix M.

1 Download

Updated 15 Feb 2011

View License

(The comments in the program are in italian, I'm sorry.)

The program 'perteig' takes as input a matrix M, a perturbation matrix B and an integer T.
T define the accuracy of the final plot.
M is the matrix we begin with. The program computes M+tB with t=n/T (n=0,1,2,...,T) and plot at each step the eigenvalues of this matrix on the complex plane.
So, finally we can see how the eingenvalues of M move on the complex plane when we're adding B to M.

In order to do some random explorations, the function 'randevoeig(n,kA,kB,T)' define two random complex integer matrices A and B (with coefficients of size at most kA and kB respectivel), and writes them in files .csv; then, it runs perteig(A,B,T).

Comments and Ratings (0)


given a better description of randevoeig in the Description field

Added a screenshot and some script from 'Matrices program with a script for eigenvalues perturbations' (#30348)

added an ID in the acknowledged submissions

Corrected some grammatical misprints in the description.

MATLAB Release Compatibility
Created with R2009a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Discover Live Editor

Create scripts with code, output, and formatted text in a single executable document.

Learn About Live Editor