Variations on a Theme?
Author: khoitsma
Structural engineer, Python programmer
PyQt PyXLL Jupyter macros Feb 2025
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Much Better Dropdowns Jan 2025
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Beautiful Retro Rebuild — Windows↓ Linux↑ Dec 2024
It was, originally, a Windows 7 machine. Bought in 2010.
Yesterday, I wiped the disk and installed 2024 Linux Ubuntu 24.04.1 LTS.
It’s now a 500GB Linux machine with a DVD drive, SmartCard slot
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Universal Dropdowns in Excel Dec 2024
Plotly Insights Nov 2024
I have built a few Plotly charts and have learned a few tricks along the way.
Reading the docs will get you part of the way there but trial and error is required to go all the way.
QuickLinks
Instant Access to all Posts
Short Takes
My Dash apps
My GeoGebra app
What is the most general equation for the area of a triangle?
The Wait calculation
The incessant obsolescence postulate (IOP)
Barnard’s Star and the 'Wait Equation'
IOP counterargument
The amazing arbelos (only good on a real desktop)
Japanese temple geometry
★ Sister Celine — a beautiful life
★ John Lienhard IV on Ingenuity
★ Charles Stutzenbaker, Field Biologist
Neal Stephenson on the OS
A few quotations
Tyler TX weather • 🌡 Steve Fitzgerald
Tyler TX weather • 3-day history
Tyler TX weather • calendar month
Tyler TX weather • graph month
East Texas weather • TAMU
★ All of the water in the world
Hacker News (from YCombinator)
Instant Access to all Posts
Short Takes
My Dash apps
My GeoGebra app
What is the most general equation for the area of a triangle?
The Wait calculation
The incessant obsolescence postulate (IOP)
Barnard’s Star and the 'Wait Equation'
IOP counterargument
The amazing arbelos (only good on a real desktop)
Barnard’s Star and the 'Wait Equation'
IOP counterargument
Japanese temple geometry
★ Sister Celine — a beautiful life
★ John Lienhard IV on Ingenuity
★ Charles Stutzenbaker, Field Biologist
Neal Stephenson on the OS
A few quotations
Tyler TX weather • 🌡 Steve Fitzgerald
Tyler TX weather • 3-day history
Tyler TX weather • calendar month
Tyler TX weather • graph month
East Texas weather • TAMU
★ All of the water in the world
Hacker News (from YCombinator)
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