Published
Graph Object of 48 USA States
Create a MATLAB® graph object from information about neighbors among the 48 contiguous states in the USA....
7 years ago
Published
Reviving Wilson’s Matrix
I probably first saw this matrix in 1960 in John Todd's class at Caltech. But I forgot about it until Tahar Loulou jogged my...
7 years ago
Published
Teaching Calculus to a Deep Learner
MIT's Professor Gil Strang gave two talks in one morning recently at the SIAM annual meeting. Both talks derived from his...
7 years ago
Published
Antarctic Ships, Fractal and Real
Antarctic Ships, Fractal and RealDavid Wilson, from the Auckland University of Technology in New Zealand, has alerted me...
7 years ago
Published
The OEIS and the Recamán Sequence
Here are the first 12 integers from an infinite sequence defined by a deceptively simple rule. Can you see the pattern? Try...
7 years ago
Published
Greg Searle, Fractal Art and Design
If you follow this blog regularly, you know that I love fractals. I recently spent a pleasant afternoon in Nashua, New...
7 years ago
Published
Play “Match the Color” Game
I first saw this game years ago in the Exploratorium, a science museum in San Francisco. You are given a computer screen...
7 years ago
Published
The MATLAB Technical Computing Environment
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...
7 years ago
Published
MATLAB History, Modern MATLAB, part 2
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...
7 years ago
Published
Friday the 13th and the Datetime Method
Today is Friday, the 13th. In many parts of the world, today is regarded as unlucky. But I want to revisit an old question:...
7 years ago
Published
The Dragon Curve
Let me tell you about a beautiful, fractal curve, the Dragon Curve. Download my new dragon program from the File Exchange...
7 years ago
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Easter, Revisited
Today is Easter Sunday. Why? How is the date of Easter determined?...
7 years ago
Published
MATLAB® History, Modern MATLAB, part 1
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...
7 years ago
Published
Happy Pi Day
Pi DayHappy Pi Day, 3/14.Here are 10,000 digits of π. Notice the six consecutive 9's in the sixth row, digits 763 through...
7 years ago
Published
MATLAB History, PC-MATLAB Version 1.0
The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on...
7 years ago
Published
Fun With The Pascal Triangle
The Wikipedia article on Pascal's Triangle has hundreds of properties of the triangle and there are dozens of other Web...
8 years ago
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
Published
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
Published
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
Published
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
Published
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
Published
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
Published
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
Published
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
Published
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
Published
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
Published
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
Published
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