MATLAB Answers

Contributors from the Past 365 Days

1 - 50 of 38,698


Walter Roberson

I do not do free private consulting. If you want to bring my attention to something, send a link to the MATLAB Answers location.

11770 reputation
1 question
3969 answers
2091 accepted answers

madhan ravi

Communication through MATLAB is always better than arguing.

7640 reputation
18 questions
3245 answers
1526 accepted answers

Star Strider

Hic sunt dracones!

PROFESSIONAL: Physician (M.D.): Diplomate of the American Board of Internal Medicine; M.Sc. Biomedical Engineering: Instrumentation, Signal Processing, Control, System Identification, Parameter Estimation

NON-PROFESSIONAL: Amateur Extra Class Amateur Radio Operator; Private Pilot, Airplane Single Engine Land, Instrument Rating Airplane; Gamer

NOTE: I do not respond to emails or personal messages, unless they are about my File Exchange contributions.

7172 reputation
0 questions
2026 answers
1305 accepted answers

Image Analyst

Senior Scientist and Inventor in one of the world's 10 largest industrial corporations doing image analysis full time. Ph.D. in Optical Sciences specializing in imaging, image processing, and image analysis. 40+ years of military, academic, and (mostly) industrial experience with image analysis programming and algorithm development. Experience designing custom light booths and other imaging systems. Experience with color and monochrome imaging, video analysis, thermal, ultraviolet, hyperspectral, CT, MRI, radiography, profilometry, microscopy, NIR and Raman spectroscopy, etc. on a huge variety of subjects. Be sure to click "View All" in my File Exchange to see ALL of my demos and tutorials:

Professional Interests: Image analysis and processing

5476 reputation
0 questions
2052 answers
786 accepted answers

Stephen Cobeldick

Suspensa Vix Via Fit

5367 reputation
0 questions
1372 answers
909 accepted answers


It is easier to solve a problem than to guess, what the problem is.

Questions about FileExchange submissions are welcome - get my address from the code. I do not answer mails concerning questions in the forum.

4327 reputation
6 questions
1027 answers
529 accepted answers
4274 reputation
0 questions
1227 answers
717 accepted answers

Professional Interests: Mathematical Computing

3536 reputation
0 questions
1613 answers
651 accepted answers

Adam Danz

Finishing PhD soon.
Vision science; neurophysiology (single unit); sensory-motor feedback and control; control systems; steering & navigation; multisensory integration; top-down bottom-up feedback loop.

Helping others is the greatest learning opportunity.

University of Rochester, NY
New Bulgarian University, Sofia Bulgaria

I only reply to emails about my file submissions. If you want to bring a question to my attention, send the link to the question.

3113 reputation
2 questions
940 answers
612 accepted answers

Matt J

Professional Interests: medical image processing, optimization algorithms

PLEASE NOTE: I do not read email sent through my author page. Please post questions about FEX submissions in their respective Comments section.

2913 reputation
20 questions
999 answers
517 accepted answers

John D'Errico

Mainly retired from Eastman Kodak. (Of course, Kodak itself is now semi-retired. I don't think I had any influence in that.) I still write MATLAB code as I find something interesting, and I do attempt to write new tools to put on the File Exchange when I think I can make a contribution.

However, I DON'T answer direct e-mail questions, and I do NOT do homework. In general, your homework is YOUR problem, not mine. Please do NOT e-mail me with your homework problems or student projects. If I was willing to answer your questions, I would very rapidly become overwhelmed, because one question is never just one simple question.

When I'm not doing something with MATLAB, you might find me playing bridge, either in the club or online on BBO.

Professional Interests: MATLAB, numerical analysis, mathematical modeling

Avocational interests: Bridge, woodworking, woodturning

2806 reputation
0 questions
768 answers
366 accepted answers
2438 reputation
1018 questions
1981 answers
1051 accepted answers
2100 reputation
8 questions
743 answers
356 accepted answers

Steven Lord

I joined The MathWorks in the Technical Support department during the summer of 2001 and transferred into the Quality Engineering department in March of 2004. I now work qualifying the core MATLAB numerical functions (PLUS, MINUS, LU, FFT, ODE45, etc.)
Professional Interests: mathematics, MATLAB

For assistance with MATLAB question please post to MATLAB Answers or contact Technical Support using the Contact Us link in the upper-right corner of the page instead of contacting me directly.

2042 reputation
0 questions
864 answers
318 accepted answers


1817 reputation
9 questions
604 answers
315 accepted answers


Knowledge means knowing where it is written...

Interested in:
- Optimization
- Mathematical Modelling
- Improvement of my programming skills

1816 reputation
1 question
614 answers
352 accepted answers


E-mails with feedback/questions about FEX submissions are welcomed. In general I will post e-mails about Answers on the related page, unless there is good cause not to do so.

1783 reputation
2 questions
548 answers
314 accepted answers
1652 reputation
0 questions
565 answers
304 accepted answers
1606 reputation
0 questions
377 answers
198 accepted answers


#Image Processing
#Alma-mater Tezpur University India

1568 reputation
1 question
722 answers
312 accepted answers

James Tursa

Interested in external applications, mex & engine applications with Fortran, C, C++, etc, particularly in the areas of speed improvement and memory management efficiencies.

1265 reputation
0 questions
363 answers
198 accepted answers

the cyclist

Data scientist at Cohen Veterans Bioscience; Obsessive runner. Professional Interests: Predictive modeling, statistics.

1122 reputation
1 question
256 answers
117 accepted answers
991 reputation
1 question
436 answers
200 accepted answers

Azzi Abdelmalek

University teacher
Speciality: Automatic control
Hobbies: Football, Music and Chess.

Professional Interests: Automatic Control

941 reputation
0 questions
3 answers
5 accepted answers

Geoff Hayes

Professional Interests: Software Engineering, Target Tracking, Video Streaming apps

940 reputation
0 questions
291 answers
155 accepted answers

Fangjun Jiang

What is a model?
Professional Interests: Model-Based Development

847 reputation
0 questions
291 answers
140 accepted answers
747 reputation
2 questions
234 answers
121 accepted answers
634 reputation
0 questions
205 answers
125 accepted answers
606 reputation
0 questions
279 answers
120 accepted answers


Visiting Scholar at Purdue University, USA

594 reputation
2 questions
86 answers
37 accepted answers
580 reputation
0 questions
172 answers
96 accepted answers


Please do not send private requests per e-mail, as I wish for my contributions to reach a broader audience. If you specifically want help from me, feel free to grab my attention by sending an email with a link to your question.

574 reputation
0 questions
171 answers
114 accepted answers
554 reputation
4 questions
229 answers
112 accepted answers

Jos (10584)

I have been using Matlab since version 4 (1999 or so) and still prefer it over all other software tools available for data manipulation :-)

My professional interests: neuroscience (motor control & eye movements), cognitive psychology physics, mathematics, teaching

"The most important part of programming is writing the comments!"

548 reputation
0 questions
169 answers
64 accepted answers
500 reputation
0 questions
134 answers
84 accepted answers


Professional Interests: Signal Processing, OOP, Matlab GUI programming, Machine Learning

499 reputation
1 question
146 answers
78 accepted answers

Sean de Wolski

I like to be outside. But if I'm inside, I like to be using MATLAB.

I'm a Senior Application Engineer at MathWorks and civil/structural engineer by education.

498 reputation
0 questions
90 answers
45 accepted answers

Alan Weiss

I write documentation for MATLAB mathematical toolboxes, primarily optimization. I have also written documentation for PDE, statistics, symbolic math, and econometrics.

My pre-MathWorks job was with Bell Labs, primarily in mathematical models of data traffic, with a strong interest in parallel computation and in rare events (large deviations).

I do not provide private consulting. If you have a question, please ask on a public forum such as MATLAB Answers.

496 reputation
0 questions
198 answers
80 accepted answers
476 reputation
0 questions
131 answers
80 accepted answers

Greg Heath

Backgound in Electromagnetic Theory, Plasma Physics and Radar Target Identification using Neural Networks.
PhD Student, Research Assistant and Lecturer at Stanford;
AB, ScB, ScM Student; Research Assistant, Fellow and Professor at Brown;
27 yrs researching Ballistic and Theatre Missile Defense using Neural Networks at MIT Lincoln Laboratory. Retired 2003.

Professional Interests: Neural Netwoks, Spectral Analysis

426 reputation
6 questions
128 answers
53 accepted answers
393 reputation
10 questions
169 answers
80 accepted answers


386 reputation
1 question
187 answers
83 accepted answers
384 reputation
0 questions
188 answers
49 accepted answers
380 reputation
0 questions
179 answers
74 accepted answers

Kojiro Saito

Application Engineer at The MathWorks (Japan).

-Remote Sensing
-Image Processing
-GIS including WebGIS
-Parallel computing
-Distributed computing

Special interest:
-Parallel / distributed computing
-Enterprise solution (Web, database)
-GIS, mapping

DISCLAIMER: Any advice or opinions posted here are my own, and in no way reflect that of MathWorks.

NOTE: Please do not send me individual messages or questions, as I will not be able to respond to them. If you have technical questions about MATLAB, please use the various resources on MATLAB Central. If you have a valid license, you can also use Technical Support.

368 reputation
0 questions
94 answers
60 accepted answers
358 reputation
8 questions
161 answers
70 accepted answers
341 reputation
6 questions
170 answers
68 accepted answers
326 reputation
0 questions
185 answers
65 accepted answers

Edric Ellis

Developer at MathWorks, working on Parallel Computing Toolbox. Professional Interests: parallel computing, distributed arrays, gpu

322 reputation
0 questions
81 answers
53 accepted answers
318 reputation
0 questions
131 answers
63 accepted answers

1 - 50 of 38,698