- Undocumented Matlab - https://undocumentedmatlab.com -

Spy Easter egg

For the 2009 Easter holiday, I thought I’d post a Matlab Easter egg, which I found on http://www.eeggs.com/items/47352.html [1]: spy is a built-in stock Matlab function for visualizing sparse matrices. If you run spy with no input arguments, it uses an undocumented default built-in sparse matrix that generates one of the spies in the famous Spy vs. Spy [2] comics series:

spy;

Matlab spy Easter egg

4 Comments (Open | Close)

4 Comments To "Spy Easter egg"

#1 Comment By Naor On April 12, 2009 @ 15:46

‘spy’ with no arguments was one of the first MATLAB commands I learned 🙂
another one was ‘why’ with no arguments, maybe you consider that an Easter egg as well…

#2 Comment By Yair Altman On April 12, 2009 @ 23:08

@Naor – the difference is that why with no args is documented, so it’s fun but not a real Easter egg.
Spy with no args is not documented.

#3 Pingback By Image Easter egg | Undocumented Matlab On April 6, 2010 @ 10:28

[…] Last year I presented the Matlab Spy Easter egg for the 2009 Easter holiday. This year, slightly late, I present another Easter egg […]

#4 Pingback By Spy Easter egg take 2 | Undocumented Matlab On April 5, 2012 @ 00:36

[…] Three years ago, I posted a short post about Matlab’s built-in Easter egg in the spy function […]