# Alex Feinman

View profile information

E-mail

Company/University

The MathWorks

Personal Profile

I'm a Senior Usability Specialist here at MathWorks, supporting our internal teams--helping design the software that our own developers use. This means any coding I do is strictly amateur stuff, and my comments should NOT be considered the "voice of the MathWorks"...

In a past life I got a doctorate analyzing how people talk and work together via computers, and have worked on projects for various sponsors including ONR, NASA, AFOSR, and AFRL.

Professional Interests

Usability; ethnographic analysis; statistics; visualization; NLP; audio processing; image processing

455Rank
450Score

on 13 Feb 2013

on 15 Jan 2013

on 21 Dec 2012

on 21 Dec 2012

on 16 Nov 2012

on 18 Oct 2012

on 18 Oct 2012

on 18 Oct 2012

on 18 Oct 2012

on 18 Oct 2012

Alex Feinman submitted a Comment to Solution 116396

You really want a larger test suite, but how would it work?

on 20 Jul 2012

on 20 Jul 2012

on 20 Jul 2012

on 31 May 2012

on 31 May 2012

Alex Feinman submitted a Comment to Problem 651. Functional inputs

I'd like to include the test case listed below, but I'm stumped as to why it doesn't work: %% x1 = [ 1 2 3 ] x2 = [ 10 20 ] y_correct = [9 19; 8 18; 7 17] y_actual = gridit(@minus, x1, x2); assert(isequal(y_actual, y_correct));

on 2 May 2012

on 2 May 2012

on 2 May 2012

Sorry about that. Cut and paste fail.

on 17 Apr 2012

on 17 Apr 2012

on 13 Feb 2012

on 13 Feb 2012

on 13 Feb 2012

Alex Feinman submitted a Comment to Solution 39915

I can't believe I used a trick I learned from Javascript...

on 13 Feb 2012

on 13 Feb 2012

on 13 Feb 2012

on 13 Feb 2012

on 13 Feb 2012

on 13 Feb 2012

on 13 Feb 2012

on 9 Feb 2012

on 9 Feb 2012

Alex Feinman submitted a Comment to Solution 34414

Nice use of arrayfun!

on 9 Feb 2012

Now with improved tests, and reference solution (which I'm sure you can beat).

on 8 Feb 2012

on 8 Feb 2012

on 8 Feb 2012

on 8 Feb 2012

on 8 Feb 2012

on 8 Feb 2012

on 8 Feb 2012

on 25 Jan 2012

on 25 Jan 2012

Alex Feinman submitted a Comment to Solution 797

Persistent server error trying to evaluate this solution...

on 25 Jan 2012

on 25 Jan 2012

on 25 Jan 2012

Another of the classic "check if MATLAB has a function that does this already" problems...

on 25 Jan 2012