# Fun With The Pascal Triangle

Posted by Cleve Moler,

The Wikipedia article on Pascal's Triangle has hundreds of properties of the triangle and there are dozens of other Web pages devoted to it. Here are a few facts that I find most interesting. ... read more >>

# Happy Valentine’s Day

Posted by Cleve Moler,

Edward Scheinerman, The Mathematics Lover's Companion, Yale University Press, 2017 https://yalebooks.yale.edu/book/9780300223002/mathematics-lovers-companion... read more >>

# Two Other MATLABs, in Bangladesh and in Hindi2

Posted by Cleve Moler,

This post is about the words "Matlab" and "matlab", in upper and lower case, and without a trademark symbol. Matlab with a capital "M" is a district in Bangladesh. "matlab" with a lower case "m" is a common word in the Hindi language. ... read more >>

# My First Computer, the Burroughs 205 Datatron1

Posted by Cleve Moler,

The first computer that I seriously used was the Burroughs 205 Datatron. I actually used two different machines, one at Caltech for two years in 1959-61 and one at the University of Utah in the summer of 1960. Both the technology and the style of usage were wildly different from today's computers.... read more >>

# How Far Apart Are Two Random Points in a Hypercube?3

Posted by Cleve Moler,

Two days ago I wrote about random points in a square. At the last minute I added the paragraph asking about the generalization to random points in a cube. I have to admit that I didn't check the Web to see what was known about the question.... read more >>

# How Far Apart Are Two Random Points in a Square?5

Posted by Cleve Moler,

How far apart can you expect two points chosen at random in the unit square to be? I found this problem on the YouTube channel maintained by Presh Talwalkar, Mind Your Decisions. He correctly calls it a very hard puzzle. At first, I guessed the answer might be $1/2$. But the correct answer is more interesting than that.... read more >>

# A Logo Zoetrope

Posted by Cleve Moler,

A quick post to point my readers to Ned Gulley's post in MATLAB Community, A Galloping Logo Zoetrope. Don't know what a Zoetrope is? Ned explains.... read more >>

Posted by Cleve Moler,

Do not get involved in a bar bet with Brad Efron and his dice until you have read this.... read more >>

# C^5, Cleve’s Corner Collection Card Catalog2

Posted by Cleve Moler,

I have been writing books, programs, newsletter columns and blogs since 1990. I have now collected all of this material into one repository. Cleve's Corner Collection consists of 458 "documents", all available on the internet. There are... read more >>

# Levenshtein Edit Distance Between Strings

Posted by Cleve Moler,

How can you measure the distance between two words? How can you find the closest match to a word in a list of words? The Levenshtein distance between two strings is the number of single character deletions, insertions, or substitutions required to transform one string into the other. This is also known as the edit distance.... read more >>