# Doug's MATLAB Video Tutorials

## Naive vs Complex solutions

This video is more philosophical than about MATLAB syntax. When trying to understand the cycles that occur in the output of a pseudo random number generator, I first approached the problem in easiest way I could think of. It worked well enough for small datasets, but because the computational order of complexity grew by N^2, this did not work very well. It took someone pointing out an algorithm that grew linearly with N to complete the job.

This kind of algorithmic innovation is needed in many cases because the profiler can help you on a line by line basis, but it can not find systematic problems like this.

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Wrap code fragments inside <pre> tags, like this:

<pre class="code">
a = magic(3);
sum(a)
</pre>


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Doug Hull is a proud MathWorker who is on a mission to help you with MATLAB.

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