6:53

Recently a MATLAB user asked me how to make it possible to work with an array of structures in such a way that she could filter the array of structures and then combine the remaining fields. Once… 更多内容 >>

2:36

If you have a vector of coordinate for a set of points, you might want to differentiate those points. To do that a concept called logical indexing will help you pull out a subset of those points… 更多内容 >>

From our Japan office via Steve’s blog: This just tickles my fancy, and I think everyone should watch it. … 更多内容 >>

1:37

When I teach the MATLAB graphics class for new technical support engineers at MathWorks, I have one major exercise for them to do. This is that exercise. if (typeof(playerLoaded) === ‘undefined’)… 更多内容 >>

7:30

This video shows the implementation of the plan for how to find the closest point on a surface to a given point. This is a numerical approximation that avoids the inevitable complexities of solving… 更多内容 >>

5:52

This video sets up the plan for how to find the closest point on a surface to a given point. This is a numerical approximation that avoids the inevitable complexities of solving the problem exactly… 更多内容 >>

5:50

This week, I am going to cover a technique that I used to speed up a data mining application that had a search through enumerated strings looking for all the matches. Using this technique of… 更多内容 >>

5:50

This video covers the use of GRIDDATA, anonymous functions, and QUAD2D to integrate the volume under a set of randomly spaced data points. First an interpolation scheme must be put in place, then a… 更多内容 >>

6:01

This short video covers the thought process of rewriting some code for clarity. The six lines of code are lengthened into twice that. The code is much more readable and maintainable. The problem… 更多内容 >>

I frequent Twitter as MATLABDoug. You can check there for daily MATLAB tips in 140 characters or less, blog post announcements and other things that I find interesting. While reading the… 更多内容 >>