Loren on the Art of MATLAB

Turn ideas into MATLAB

Two-Dimensional Integration over a General Domain 31

Posted by Loren Shure,

There have been several requests on the MATLAB newsgroup to calculate the area of a function on a non-rectangular domain. MATLAB's function dblquad uses the technique that I am going to illustrate today for rectangular domains. And I just noticed this entry on the File Exchange for doing 2-dimensional... read more >>

High Performance File I/O 6

Posted by Loren Shure,

Today I'd like to tell you how you might improve the performance of reading and writing files using MATLAB's low-level file i/o functions. The key here is to disable the automated buffer flushing. ... read more >>

MATLAB Programming Practices 10

Posted by Loren Shure,

I'm feeling pensive today as I participate in development activities at MathWorks for Release 2006b. We are following a 6-month release schedule and the naming convention for the twice yearly releases is year followed by first "a" and then "b". This schedule requires ... read more >>

Vectorized goto in MATLAB 26

Posted by Loren Shure,

Customers have long asked for a GOTO statement in MATLAB to allow them to use programming constructs familiar to them from other languages they already know. I am pleased to announce that a proposal is making its way through the design process at MathWorks and I thought I'd use... read more >>

Understanding Persistence 6

Posted by Loren Shure,

Questions about using persistent variables arise from time to time in the MATLAB newsgroup. Today I'd like to show you a little about what you might think you can do, but can't with persistent variables. I am also curious to hear... read more >>

Making Functions Suitable for ND Arrays 12

Posted by Loren Shure,

When we changed MATLAB to handle more than just 2-dimensional arrays (MATLAB version 5), we wanted to extend existing M-files to also handle N dimensions, when sensible. We found certain ways to do that well and I plan to show a... read more >>

M-Lint Live in Editor in R2006a 14

Posted by Loren Shure,

M-Lint is a tool new in MATLAB version 7 (Release 14) to check code for possible problems and report results. You can use it from the MATLAB command line, from the Current Directory Browser, and from the MATLAB Editor. To learn more about mlint, you might find this... read more >>

Working with structs 5

Posted by Loren Shure,

MATLAB has some functions that are specifically designed for exploring the contents of structures (entities known in MATLAB by the class struct). I find the functions isfield and fieldnames particularly helpful. The reason I raise this area of functionality is because... read more >>

These postings are the author's and don't necessarily represent the opinions of MathWorks.