Mathpax Logo
  • Home
  • What is Mathpax ?
  • Blog/Contact/Interests/About
    • Blog
    • Contact/Interests
    • About
  • Search Posts
    • Short Takes
    • Instant Access
    • Tabular List — Blog Entry Search
  • Search the site ... 🔍
  • Homepage
  • >
  • Engineering Codes

Category: Engineering Codes

Building codes and specifications

ACI Rebar Lookup May 2023

  • khoitsma
  • ACI, Engineering, Engineering Codes, Excel, Python, PyXLL
  • 0 Comments

I built a rebar lookup using PyXLL
lookup

Continue Reading

PyXLL using Jupyter and PySimpleGUI Interface (with video) Dec 2022

  • khoitsma
  • AISC, Excel, Jupyter, PySimpleGUI, Python, PyXLL, Video
  • 0 Comments

This post features:
  the PyXLL add-on
  Jupyter
  the PySimpleGUI graphical interface

Continue Reading

Easy Section Properties for Array of Points © Oct 2022

  • khoitsma
  • AISC, Concept, Engineering, Mathematics, Steel Detail
  • 0 Comments

Based on finite calculus


Continue Reading

AISC bolt holes Aug 2022

  • khoitsma
  • AISC, Python, Steel Detail
  • 0 Comments

This code illustrates the readability of Python.

Compare reading the text of AISC 15th Edition Manual, Section J3 to the program statements.

Continue Reading

Pipe Flexibility using Julia and Jupyter Jul 2022

  • khoitsma
  • ASME, Engineering, Julia, Jupyter, Plotly, Plots, Symbolics
  • 0 Comments

I compared equations from den Hartog, from Kireev et al, and from B31.3 Table D300.

The agreement was quite good.

Continue Reading

ASCE Exact Wind Integration (closed form equations) Jun 2021

  • khoitsma
  • ASCE, Calculus, Cocalc, Excel, Jupyter, Mathematics, Python, PyXLL, SageMath
  • 0 Comments

I developed a Python function to calculate closed form exact values for wind forces and wind CGs.

I use only calculus — no bar charts with 0′ to 15′, 20′ to 25′, et cetera —- a curve rather than a step function. I present derivations and examples.

Continue Reading

Posts navigation

Older posts
Newer posts

Recent Posts

  • 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

Archives

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)
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
  • Home
  • What is Mathpax ?
  • Blog
  • Contact/Interests
  • About
  • Instant Access
  • Tabular List — Blog Entry Search
Pentagonal number visual proof

Dice Distribution (bar)

Bayes theorem visual proof

Bayes icon