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Alan Richmond

Scientific systems programmer (ex NASA, ESA/ESO, Hubble), web developer, online retailer (retired)

  • About Me
    • Me, Myself, & I
    • Alan Richmond’s CV
    • Academic Publications
    • Testimonials
      • 1988 – 1990 Testimonial from STScI
      • 1985 – 1988 Testimonial from ST-ECF
      • 1991 – 1993 Testimonial from ESRF
      • 1981 – 1987 Testimonial from JET/Max Planck Institute for Plasma Physics
    • Contact Me
  • Richmond Sites
    • Pretty Math Pictures
    • Neil Richmond Photography
    • Mark Richmond (facebook)
  • Alan Turing: computable numbers and Turing machines, the Turing test, his Zeta machine and the Riemann Hypothesis, a history timeline
    • The Imitation Game: A Poor Imitation of Reality
    • Alan Turing Timeline
    • Dr. Turing’s Automatic Machine
    • Turing’s Zeta Machine & the Riemann Hypothesis
    • The Turing Test
    • Alan Turing on Computable Numbers and Computer Programs
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Recent Posts: Pretty Math Pictures

Multi-pendulum Harmonograph simulator using numpy and matplotlib

Multi-pendulum Harmonograph simulator using numpy and matplotlib

Spectral Harmonographs

Spectral Harmonographs

Harmonograph in Pygame

Harmonograph in Pygame

Stars and Stripes

Stars and Stripes

Rainbow Flag in Pygame

Rainbow Flag in Pygame

Top Posts & Pages

  • A Neural Network in Python, Part 1: sigmoid function, gradient descent & backpropagation
  • Create Your Own Ubuntu-respin Linux Distro
  • Alan Turing on Computable Numbers and Computer Programs
  • Alan Turing Timeline
  • A Graphical Dice Simulator
  • Naive Mandelbrot Set
  • Disturbed - The Sound of Silence
  • Lateral Thinking Puzzles
  • Solar System Scope
  • Number guessing game
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My House Plants

My House Plants

“A houseplant is a plant that is grown indoors

29 Jul - by Alan - 0 - In Uncategorised
Merlyn: Computer Control by Speech Recognition

Merlyn: Computer Control by Speech Recognition

Merlyn is a Python program for computer control by

12 Apr - by Alan - 0 - In Linux
Eight Queens Puzzle – Six Lines

Eight Queens Puzzle – Six Lines

‘Eight Queens Puzzle’ is a classic

7 Mar - by Alan - 0 - In Advanced Artificial Intelligence
A Neural Network in Python, Part 2: activation functions, bias, SGD, etc.

A Neural Network in Python, Part 2: activation functions, bias, SGD, etc.

This is Part 2 of A Neural Network

9 Feb - by Alan - 0 - In Advanced Artificial Intelligence
A Neural Network in Python, Part 1: sigmoid function, gradient descent & backpropagation

A Neural Network in Python, Part 1: sigmoid function, gradient descent & backpropagation

In this article, I’ll show you a toy example

31 Jan - by Alan - 4 - In Advanced Artificial Intelligence
A Brief Introduction to Artificial Neural Networks

A Brief Introduction to Artificial Neural Networks

This short article gives you a high-level overview of

- by Alan - 2 - In Artificial Intelligence
Ramanujan’s 129th Birthday

Ramanujan’s 129th Birthday

Someone on Reddit pointed out

22 Dec - by Alan - 0 - In Basic Numbers
Create Your Own Ubuntu-respin Linux Distro

Create Your Own Ubuntu-respin Linux Distro

Do you want to create your own customised version

4 Jul - by Alan - 0 - In Linux
Easy AI with Python 3

Easy AI with Python 3

Survey several basic AI techniques implemented with short, open-source

19 May - by Alan - 1 - In Advanced Artificial Intelligence
Solar System Scope

Solar System Scope

Online 3D simulation of the Solar System

8 Apr - by Alan - 0 - In Astrophysics
Have we already seen this number? (deja vu again)

Have we already seen this number? (deja vu again)

I had a phone interview for a Python job

- by Alan - 0 - In Beginner Numbers
Recommended Online Courses in Computing, Science & Mathematics

Recommended Online Courses in Computing, Science & Mathematics

These are MOOCs or Online Courses in Computing that

30 Mar - by Alan - 0 - In Artificial Intelligence Linux Math & Computer Science Science Web & Internet
Hello World 2, in Python 3

Hello World 2, in Python 3

Hello World is the famous

24 Mar - by Alan - 0 - In Beginner
Book Review: Coloring the Universe

Book Review: Coloring the Universe

Coloring the Universe: An Insider’s Look at Making

18 Feb - by Alan - 0 - In Astrophysics Books
Barcodes in the Stars: Stellar Spectroscopy

Barcodes in the Stars: Stellar Spectroscopy

What are the Sun and Stars Made of?

Scientists

12 Feb - by Alan - 0 - In Astrophysics
World Science U: Knowledge for Everyone

World Science U: Knowledge for Everyone

Whether you are a high school student, science major

- by Alan - 0 - In Science
General Puzzles

General Puzzles

A man who lives on the tenth floor takes

- by Alan - 0 - In Puzzles
Logic Puzzles

Logic Puzzles

- by Alan - 0 - In Puzzles
Lateral Thinking Puzzles

Lateral Thinking Puzzles

Be prepared to think outside the box for these

- by Alan - 0 - In Puzzles
Disturbed – The Sound of Silence

Disturbed – The Sound of Silence

This post has nothing to do with computers, science,

- by Alan - 0 - In Uncategorised
Does ‘Almost Infinite’ Mean Anything, Really?

Does ‘Almost Infinite’ Mean Anything, Really?

It’s a common enough phrase, and I think most

6 Feb - by Alan - 0 - In Uncategorised
A Basic Introduction to HTML

A Basic Introduction to HTML

HyperText Markup Language (HTML) is the main markup

11 Jan - by Alan - 0 - In Web & Internet
Web Publishing with WordPress

Web Publishing with WordPress

WordPress is a free

- by Alan - 0 - In Web & Internet
Number guessing game

Number guessing game

The number guessing game incorporates several simple but important

1 Oct - by Alan - 0 - In Basic Numbers

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