Published

Happy Valentine’s Day
ContentsThanks ezplot('(x^2+y^2-1)^3 = x^2*y^3', ... [-1.5,1.5,-1.2,1.5]) colormap([.5 .2 .2]) ...

8 years ago

Published

The Historic MATLAB Users’ Guide
In the 1970s and early 1980s, while I was working on the LINPACK and EISPACK projects that I discussed in two previous...

8 years ago

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LINPACK, Linear Equation Package
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...

8 years ago

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EISPACK, Matrix Eigensystem Routines
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...

8 years ago

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Bug in Half-Precision Floating Point Object
My post on May 8 was about "half-precision" and "quarter-precision" arithmetic. I also added code for objects fp16 and fp8...

8 years ago

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Wilkinson and Reinsch Handbook on Linear Algebra
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...

8 years ago

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Leslie Fox
Leslie Fox (1918-1992) is a British numerical analyst who was a contemporary of three men who played such an important role...

8 years ago

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Three-Term Recurrence Relations and Bessel Functions
Three-term recurrence relations are the basis for computing Bessel functions. Contents A Familiar Three-Term...

8 years ago

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Two Other MATLABs, in Bangladesh and in Hindi
This post is about the words "Matlab" and "matlab", in upper and lower case, and without a trademark symbol. Matlab with...

8 years ago

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My First Computer, the Burroughs 205 Datatron
The first computer that I seriously used was the Burroughs 205 Datatron. I actually used two different machines, one at...

8 years ago

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How Far Apart Are Two Random Points in a Hypercube?
Two days ago I wrote about random points in a square. At the last minute I added the paragraph asking about the...

8 years ago

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How Far Apart Are Two Random Points in a Square?
How far apart can you expect two points chosen at random in the unit square to be? I found this problem on the YouTube...

8 years ago

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A Logo Zoetrope
A Logo ZoetropeA quick post to point my readers to Ned Gulley's post in MATLAB Community, A Galloping Logo Zoetrope. Don't...

8 years ago

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Brad Efron’s Nontransitive Dice
Do not get involved in a bar bet with Brad Efron and his dice until you have read this....

8 years ago

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C^5, Cleve’s Corner Collection Card Catalog
I have been writing books, programs, newsletter columns and blogs since 1990. I have now collected all of this material...

8 years ago

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Levenshtein Edit Distance Between Strings
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...

8 years ago

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Latent Semantic Indexing, SVD, and Zipf’s Law
Latent Semantic Indexing, LSI, uses the Singular Value Decomposition of a term-by-document matrix to represent the...

8 years ago

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What is the Condition Number of a Matrix?
A couple of questions in comments on recent blog posts have prompted me to discuss matrix condition numbers.... read more...

8 years ago

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Householder Seminar HHXX on Numerical Linear Algebra
The Householder meetings on Numerical Linear Algebra have been held roughly every three years since 1961. The twentieth,...

8 years ago

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Hilbert Matrices
I first encountered the Hilbert matrix when I was doing individual studies under Professor John Todd at Caltech in 1960. It...

8 years ago

Submitted

Solving ODEs in MATLAB
MATLAB files for Exercises Solving ODEs in MATLAB

8 years ago | 17 downloads |

4.8 / 5

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Quadruple Precision, 128-bit Floating Point Arithmetic
The floating point arithmetic format that occupies 128 bits of storage is known as binary128 or quadruple precision. This...

8 years ago

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“Half Precision” 16-bit Floating Point Arithmetic
The floating point arithmetic format that requires only 16 bits of storage is becoming increasingly popular. Also known as...

8 years ago

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A Roman Numeral Object, with Arithmetic, Matrices and a Clock
A MATLAB object for arithmetic with Roman numerals provides an example of object oriented programming. I had originally...

8 years ago

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Bank Format and Metric Socket Wrenches
A report about a possible bug in format bank and a visit to a local hardware store made me realize that doing decimal...

9 years ago

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My Erdös Number and My Trump Number
I've long known that my Erdös Number is 3. This means that the length of the path on the graph of academic coauthorship...

9 years ago

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Morse Code, Binary Trees and Graphs
A binary tree is an elegant way to represent and process Morse code. The new MATLAB graph object provides an elegant way to...

9 years ago

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Lake Arrowhead Coauthor Graph Revisited
The Lake Arrowhead Coauthor Graph came out of the Householder XII conference in 1993 at the UCLA conference center in the...

9 years ago

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Hypercubes and Graphs
The adjacency matrix of a hypercube demonstrates the new MATLAB graph object....

9 years ago

Published

Patience Chinese Rings Puzzle
MIT's Professor Daniel Frey recently introduced me to an ancient mechanical puzzle known as "Chinese Rings", "Patience", or...

9 years ago