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Author: khoitsma

Structural engineer, Python programmer

Lessons Learned (structural engineering) Apr 2025

  • khoitsma
  • Engineering, Observation
  • 2 Comments

Lessons Learned Apr 2025 …

Overview
Documentation
Folders
Site photos
Plan
Staffing
Paper and Pencil
Patterns
Templates
Spreadsheets
Checking
Multiple solutions
Rapid response
Incremental release
Good and fast
Flex

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Marimo Notebook Mar 2025

  • khoitsma
  • Marimo.io, Plotly, Plots, Python
  • 0 Comments

This may be unbelievable — It’s a live Python (language) notebook !

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Fixed Fixed Beam with a Moment at any Point — Superposition Mar 2025

  • khoitsma
  • Engineering, Mathematics
  • structural engineering
  • 0 Comments

moment diagram

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NotebookLM Feb 2025

  • khoitsma
  • Engineering, Excel, Jupyter, NotebookLM, PyQt, PySide2, Python, PyXLL, Video
  • 0 Comments

Google released NotebookLM in December 2023

I tried it out this week. I say quite interesting.

Take a look, take a listen, the audio overview is LOL!

Gemini button

~~~

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Cantilever with a Concentrated Load at any Point — Castigliano’s 2nd Theorem Feb 2025

  • khoitsma
  • Calculus, Computer Algebra, Engineering, Jupyter, Mathematics, Python, Sympy
  • structural engineering
  • 0 Comments

cantilever beam formulas

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Most general equation for the area of a triangle Feb 2025

  • khoitsma
  • Concept, Desmos Calculator, Mathematics
  • 0 Comments

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Posts navigation

Older posts
Newer posts

Recent Posts

  • NotebookLM Cather Oct 2025
  • Minimal Footprint Dropdowns in Excel Oct 2025
  • Bow Out Aug 2025
  • Automated Foundation Rebar Drawing Aug 2025
  • Close Encounters in Batting Averages July 2025
  • 2D Engineering Interpolation Jun 2025
  • Lessons Learned (structural engineering) Apr 2025
  • Marimo Notebook Mar 2025
  • Fixed Fixed Beam with a Moment at any Point — Superposition Mar 2025
  • NotebookLM Feb 2025
  • Cantilever with a Concentrated Load at any Point — Castigliano’s 2nd Theorem Feb 2025

Archives

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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)
Surprises found in the arbelos (1954)
Arbelos from Wolfram MathWorld
Circle Theorems
• Circle Theorems Marked
• Circle Theorems — Practice
Two Semicircles
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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Pentagonal number visual proof

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Bayes theorem visual proof

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