Here are the first 12 integers from an infinite sequence defined by a deceptively simple rule. Can you see the pattern? Try to predict the next number in the sequence.... read more >>

# The OEIS and the Recamán Sequence 7

Posted by **Cleve Moler**,

Blogs

Posted by **Cleve Moler**,

Here are the first 12 integers from an infinite sequence defined by a deceptively simple rule. Can you see the pattern? Try to predict the next number in the sequence.... read more >>

Posted by **Cleve Moler**,

If you follow this blog regularly, you know that I love fractals. I recently spent a pleasant afternoon in Nashua, New Hampshire, where my daughter Teresa introduced me to Gregory Searle, a fractal artist and computer geek. Here is his logo.... read more >>

Posted by **Cleve Moler**,

I first saw this game years ago in the Exploratorium, a science museum in San Francisco. You are given a computer screen with two color patches and three sliders. One of the color patches is fixed. The sliders control the red, green and blue components of the other patch. Your task is to adjust the sliders until the two patches are the same color. It ain't easy.... read more >>

Posted by **Cleve Moler**,

Camille Jordan (1838-1922)... read more >>

**Category:**- Eigenvalues,
- History,
- Matrices,
- Numerical Analysis,
- Symbolic

Posted by **Cleve Moler**,

The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on the History of Programming Languages in 2020, see HOPL-IV. The first drafts of papers are to be submitted by August 2018. That long lead time gives me the opportunity to write a detailed history of MATLAB. I plan to write the paper in sections, which I'll post in this blog as they are available. This is the seventh, and final, installment.... read more >>

**Category:**- History,
- Supercomputing,
- Symbolic

Posted by **Cleve Moler**,

The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on the History of Programming Languages in 2020, see HOPL-IV. The first drafts of papers are to be submitted by August 2018. That long lead time gives me the opportunity to write a detailed history of MATLAB. I plan to write the paper in sections, which I'll post in this blog as they are available.... read more >>

**Category:**- Calculus,
- Differential Equations,
- Graphics,
- History

Posted by **Cleve Moler**,

Today is Friday, the 13th. In many parts of the world, today is regarded as *unlucky*. But I want to revisit an old question: is today *unlikely*? What are the chances that the 13th of any month falls on a Friday? Computing the answer makes use of a new MATLAB® feature, the `datetime` method.... read more >>

Posted by **Cleve Moler**,

Let me tell you about a beautiful, fractal curve, the Dragon Curve. Download my new `dragon` program from the File Exchange and follow along.... read more >>

Posted by **Cleve Moler**,

Today is Easter Sunday. Why? How is the date of Easter determined?... read more >>

**Category:**- Algorithms,
- Fun,
- History,
- People

Posted by **Cleve Moler**,

The ACM Special Interest Group on Programming Languages, SIGPLAN, expects to hold the fourth in a series of conferences on the History of Programming Languages in 2020, see HOPL-IV. The first drafts of papers are to be submitted by August, 2018. That long lead time gives me the opportunity to write a detailed history of MATLAB. I plan to write the paper in sections, which I'll post in this blog as they are available.... read more >>

## Recent Comments