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Month: November 2021

Excel Functions Nov 2021

  • khoitsma
  • Excel
  • 0 Comments

New functions in Excel 2019

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Python, PyXLL, and Pyside2 Nov 2021

  • khoitsma
  • Excel, PySide2, Python, PyXLL, Video
  • 0 Comments


I built a full PySide2 menu that allows the selection and presentation of AISC steel properties and the calculation of ASCE wind loads.

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Nature is the ultimate master of the concept of: maximum output from the minimum input.

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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)
Diaorifa

Recent Posts

  • Centers of Gravity of the Triangle and Lean-To Trapezoid Jan 2026
  • Classical Structural Analysis (2nd verse) Dec 2025
  • Classical Structural Analysis Dec 2025
  • Gale-Shapley Algorithm Dec 2025
  • The Triangle of Minimum Perimeter Nov 2025
  • 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

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sunrise sunset Tyler TX 2026 and thank you DrDrang
Sunrise Sunset Tyler TX 2026
(and thank you DrDrang)

Pentagonal number visual proof

Dice Distribution (bar)

Bayes theorem visual proof

Bayes icon