Today I want to talk a bit about the function isfield and some of the history of its implementation. isfield has been built into MATLAB for a few releases now. We felt it was important... 続きを読む >>

We might want to a write a function that mimics the behavior of another related function, specifically with respect to input shapes, etc. Ideally, we'd like to write it so we... 続きを読む >>

I have seen an increasing number of questions on structures and extracting information from them in a vectorized way. Though I've already covered portions of this topic in... 続きを読む >>

Over the years, people have posted many versions of code for calculating Fibonacci numbers. I thought I'd collect a few of the ideas here and start a discussion on the merits... 続きを読む >>

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... 続きを読む >>

Since there seems to be so much interest in the topic of going beyond scalar expansion, it seems worth talking about yet some other ways to achieve the same goals. I am very appreciative of the... 続きを読む >>

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Some languages provide ways to store results of costly calculations so if the calculation had been performed before, it need not be repeated when requested later. There is a way to accomplish this... 続きを読む >>

Users have needed access to information about the existence of variables, files, etc. in MATLAB for a long time. The function exist allows us to programmatically check for these entities. exist... 続きを読む >>