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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 Basic Introduction to HTML
  • Create Your Own Ubuntu-respin Linux Distro
  • A Neural Network in Python, Part 1: sigmoid function, gradient descent & backpropagation
  • Solar System Scope
  • Alan Turing on Computable Numbers and Computer Programs
  • A Neural Network in Python, Part 2: activation functions, bias, SGD, etc.
  • Compute Average Heights
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Tag: function

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
Popular Sorting Algorithms

Popular Sorting Algorithms

Sorting is probably the most

24 Aug - by Alan - 1 - In Basic
Binary Search

Binary Search

Binary Search is one of the most fundamental computer

27 Apr - by Alan - 1 - In Basic Numbers