This video builds on the last one. A quick monte carlo test is built to see if the Luhn Algorithm really will detect transpositions. The testing indicates that only one pair of numbers transposing… read more >>
The Luhn algorithm is a fast checksum that allows you to know if an entered series of numbers has any of the repeated digits or transpositions that are common when typing numbers in. By having a… read more >>
Recently, a MATLAB user asked me how to build a UI which lets the user display any image in a directory by selecting the name of the image from a pop-up menu. This uses a few concepts like the DIR… read more >>
It is often easier to acquire or generate data than it is to understand the data. In this video, we explore different options for visualizing data to gain better insight to solve a problem…. read more >>
Many times we use difficult syntax in MATLAB because we do not know there is a better way and do not know to look for a better way. A recently saw some MATLAB code that could have been a lot… read more >>
A MATLAB user recently asked me how the UI shown here was made. Those grey boxes are made from edit boxes that have been customized. This video shows how it is done. if (typeof(playerLoaded) ===… read more >>
I work with a lot of recent computer science graduates who are learning MATLAB. Something I see from them is they often want to choose some complicated but fast algorithm to do a task I give to them… read more >>
I am a little obsessive about data visualization. I have a side project selling a book I wrote. The data is not in a nice time history form, so I need to manually gather the data then reformat and… read more >>
I was asked recently how to generate all the combinations from two possible outcomes. It reminded me of a recent post on Flowing Data about the sum of two dice. This is a nice little function,… read more >>
It can be difficult to see a line that is drawn over an image. The line is often lost in the background colors. That is why cursors are colored as they are, so that they are visible on any… read more >>