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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

  • Alan Turing Timeline
  • A Neural Network in Python, Part 1: sigmoid function, gradient descent & backpropagation
  • A Neural Network in Python, Part 2: activation functions, bias, SGD, etc.
  • Merlyn: Computer Control by Speech Recognition
  • Create Your Own Ubuntu-respin Linux Distro
  • Animated Tower of Hanoi
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Category: Beginner

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

8 Apr - by Alan - 0 - In Beginner Numbers
Hello World 2, in Python 3

Hello World 2, in Python 3

Hello World is the famous

24 Mar - by Alan - 0 - In Beginner
A Quick Introduction to Python 3 Programming

A Quick Introduction to Python 3 Programming

This Quick Introduction to Python 3 aims to teach

23 Jun - by Alan - 1 - In Beginner
A Graphical Dice Simulator

A Graphical Dice Simulator

This PyGame program simulates the

31 May - by Alan - 0 - In Beginner Games
Editors & IDEs

Editors & IDEs

A text editor is all very well for simple

12 May - by Alan - 0 - In Beginner
Compute Average Heights

Compute Average Heights

This is a simple program to compute average heights. In

3 May - by Alan - 0 - In Beginner Numbers