MATLAB Answers

Contributors from the Past 365 Days


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.

14251 reputation
3 questions
4681 answers
2412 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.

8324 reputation
0 questions
2148 answers
1345 accepted answers

Image Analyst

Senior Scientist (male/man) 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. Member of the Mathworks Community Advisory Board. Be sure to click "View All" in my File Exchange to see ALL of my demos and tutorials:

Professional Interests: Image analysis and processing

6300 reputation
0 questions
2117 answers
808 accepted answers

Ameer Hamza


5326 reputation
0 questions
1796 answers
1021 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.

4252 reputation
40 questions
1468 answers
766 accepted answers

Professional Interests: Mathematical Computing

4233 reputation
0 questions
1760 answers
731 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.

4231 reputation
3 questions
1196 answers
586 accepted answers

Stephen Cobeldick

Suspensa Vix Via Fit

3793 reputation
0 questions
806 answers
593 accepted answers
3781 reputation
0 questions
1473 answers
747 accepted answers
3400 reputation
895 questions
2416 answers
1056 accepted answers

Adam Danz

Email: feel free to contact me regarding my shared files on the file exchange. I don't do free consulting outside of the forum so if you have a Matlab question, post the question to the forum and you may email me the link to the question.

About me: Finishing PhD soon on topics related to vision science; neurophysiology; sensory-motor feedback and control; control systems; steering & navigation; multisensory integration; top-down bottom-up feedback loop.

"If I had only one hour to save the world, I would spend fifty-five minutes defining the problem, and only five minutes finding the solution." -Albert Einstein

"An expert is a person who has made all the mistakes that can be made in a very narrow field." -Niels Bohr

"If you are not embarrassed by the first version of your product, you've launched too late" - Reid Hoffman

3346 reputation
0 questions
893 answers
549 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.

3010 reputation
0 questions
1328 answers
476 accepted answers
2246 reputation
0 questions
824 answers
441 accepted answers


2031 reputation
7 questions
634 answers
346 accepted answers

John D'Errico

DON'T contact me. I won't answer questions. PERIOD. I don't do your homework. I won't do consulting. A retired mathematician, numerical analyst, woodworker, bridge player.

1957 reputation
2 questions
602 answers
236 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.

1754 reputation
2 questions
562 answers
297 accepted answers
1747 reputation
14 questions
595 answers
275 accepted answers

Mathieu NOE

Engineer - mechanices /ekectronics / signal processing

Average matlab user for 20 years now.
Professional Interests: signal processing, adaptive control, noise and vibration processing

1598 reputation
0 questions
641 answers
325 accepted answers


Hi, I'm nobody.
I don't belong here, but I have nothing better to do.
Matlab used to be part of my work.
Now it's part of my hobbies.
That's pretty sad, really.

1554 reputation
12 questions
576 answers
300 accepted answers

David Hill

Electrical Engineering with minors in Computer Science, Mathematics, and Creative Writing.

Working as Undergraduate Research Assistant in the field of Computational Photonics

1546 reputation
0 questions
646 answers
289 accepted answers

the cyclist

Obsessive runner. Flâneur. Professional Interests: Predictive modeling, statistics. (I don't respond to email via author page, but will usually look at a question if you send me a link to it.)

1428 reputation
0 questions
338 answers
185 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.

1345 reputation
0 questions
418 answers
201 accepted answers

Fangjun Jiang

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

1137 reputation
2 questions
407 answers
183 accepted answers

madhan ravi

Communication through MATLAB is always better than arguing.

1107 reputation
5 questions
396 answers
169 accepted answers


Knowledge means knowing where it is written...

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

1084 reputation
0 questions
339 answers
188 accepted answers


Programming in MATLAB applied to interdisciplinary engineering fields

994 reputation
4 questions
714 answers
186 accepted answers
984 reputation
1 question
403 answers
180 accepted answers


#Image Processing
#Learner Alma #TezpurUniv

944 reputation
0 questions
429 answers
165 accepted answers

Sulaymon Eshkabilov

research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding

820 reputation
2 questions
610 answers
151 accepted answers

Azzi Abdelmalek

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

Professional Interests: Automatic Control

818 reputation
0 questions
0 answers
1 accepted answer

Scott MacKenzie

779 reputation
3 questions
274 answers
150 accepted answers

Mario Malic

Mechanical Engineer
Professional interests: CAx, Finite Element Analysis, Optimization Methods

762 reputation
8 questions
311 answers
156 accepted answers
605 reputation
19 questions
226 answers
120 accepted answers
591 reputation
5 questions
166 answers
84 accepted answers


Matlab user since 1990

588 reputation
1 question
226 answers
120 accepted answers
538 reputation
0 questions
0 answers
9 accepted answers
522 reputation
0 questions
168 answers
104 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.

498 reputation
0 questions
195 answers
91 accepted answers
494 reputation
0 questions
159 answers
85 accepted answers
482 reputation
0 questions
264 answers
83 accepted answers

Atsushi Ueno

I understand MATLAB completely.

474 reputation
0 questions
129 answers
79 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.

458 reputation
0 questions
59 answers
24 accepted answers
432 reputation
0 questions
14 answers
8 accepted answers

Geoff Hayes

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

426 reputation
0 questions
80 answers
41 accepted answers
411 reputation
0 questions
163 answers
80 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.

406 reputation
0 questions
91 answers
52 accepted answers
405 reputation
1 question
148 answers
80 accepted answers


378 reputation
3 questions
154 answers
72 accepted answers
359 reputation
3 questions
72 answers
47 accepted answers

David Fletcher

Prior roles - technician (pharmaceutical chemistry, pharmacognosy and electron microscopy). Currently working as a senior technician in pharmaceutical technology.

358 reputation
0 questions
101 answers
72 accepted answers