# Puzzler: Working with polynomials11

Posted by Doug Hull,

This puzzler is very straightforward, so I hope to hear from some of the newer MATLAB users. I think the solution is very linear, most people would come up with the same solution. As a hint, be sure to look at our help for POLYDER and ROOTS.

# Advanced MATLAB: Dynamic field names

Posted by Doug Hull,

We have MATLAB users come into The MathWorks to present their work in MATLAB from time to time. Recently there was an interesting presentation with some really great “Clutter classification” algorithms in a GUI. One of the questions that came out of that discussion was how to get rid of… read more >>

# Puzzler: Find largest connected island26

Posted by Doug Hull,

Every now and then we send MATLAB challenges through the department to help sharpen our programming skills. What amazes me is the sheer variety of solutions that people come up with.
Today, I have a challenge for the community here. Given a matrix of random, positive, whole numbers, find… read more >>

# MATLAB Basics: Setting edge color for large surface plots5

Posted by Doug Hull,

Often if you make a surface plot with SURF for a large dataset, it will appear all black because MATLAB is trying to draw all the edge lines. You can stop these lines from obscuring your data by turning the edge color off: a= peaks(1000); h = surf(a) set(h, ‘edgecolor’,’none’) if (typeof(playerLoaded) ===… read more >>

# Jiro’s live seminar, Complete: higher resolution video1

Posted by Doug Hull,

After putting this video on the blog as a nine installment collection, the feedback was strongly for a single, high resolution video. Here it is as requested. To review, this is a half hour video that shows Jiro solving a case study involving the import of data, visualization, automating of plotting,… read more >>

# Jiro’s live seminar, part 9 of 9: Recap and automated reporting3

Posted by Doug Hull,

There is nothing like seeing an expert MATLAB user in action to learn plenty of tips and tricks about using MATLAB. Not everyone can get to one of our free live seminars, so Jiro and I made this recording. We will be presenting the 37 minutes of video… read more >>

# Jiro’s live seminar, part 8 of 9: Designing for variability2

Posted by Doug Hull,

There is nothing like seeing an expert MATLAB user in action to learn plenty of tips and tricks about using MATLAB. Not everyone can get to one of our free live seminars, so Jiro and I made this recording. We will be presenting the 37 minutes of video… read more >>

# Jiro’s live seminar, part 7 of 9: Optimize the design1

Posted by Doug Hull,

There is nothing like seeing an expert MATLAB user in action to learn plenty of tips and tricks about using MATLAB. Not everyone can get to one of our free live seminars, so Jiro and I made this recording. We will be presenting the 37 minutes of video… read more >>

# Jiro’s live seminar, part 6 of 9: Making scripts from command history and cell mode

Posted by Doug Hull,

There is nothing like seeing an expert MATLAB user in action to learn plenty of tips and tricks about using MATLAB. Not everyone can get to one of our free live seminars, so Jiro and I made this recording. We will be presenting the 37 minutes of video… read more >>

# Jiro’s live seminar, part 5 of 9: Recap and Design of Experiments (DOE)1

Posted by Doug Hull,

There is nothing like seeing an expert MATLAB user in action to learn plenty of tips and tricks about using MATLAB. Not everyone can get to one of our free live seminars, so Jiro and I made this recording. We will be presenting the 37 minutes of video… read more >>