Wondering about the History of Horseshoes Dec 2020

http://khoitsmahq.firstcloudit.com/images%2Fcanvas.html

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Structural Analysis, Finite Difference Method, Pythonista, and Plotly Oct 2020

khoitsma
iPad_iPhone, Mathematics, Plotly, Python, Pythonista
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Beam Problem — Hand Calculation PDF LINK — beam analysis — hand calculations The 5 page calculation in the PDF was done in 1983. The quidiagonal matrix solution was probably done with an HP-41 calculator program. Beam Problem — Plotly Graph LIVE LINK to HTML PAGE — using Plotly The Plotly graph shows deflections, shears, […]

Sol-20 Jul 2020

The Sol-20 home computer, with an Intel 8080 (2 MHz, RAM 1 kB up to 64 kB max), as seen in 1977 at Interactive Computers Located at 7646 1/2 Dashwood In Houston, Texas From the wiki: ‘The design was originally suggested by Les Solomon, the editor of Popular Electronics. He asked Bob Marsh of Processor […]

Multi-Page Apps using Dash/PythonAnywhere Apr2020

khoitsma
AISC, Dash by Plotly, iPad_iPhone, Python, pythonanywhere
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AISC Strong Axis Bending https://khoitsma1.pythonanywhere.com/apps/app2 Replaces 45 pages in AISC 15th Manual Graphical and tabular data Change the shape selection (HP12, for instance) Hover over the chart data points AISC Filtered Shape Properties https://khoitsma1.pythonanywhere.com/apps/app3 All properties for a user’s selection (2L4X3X3/8X3/4SLBB , for instance) Just start typing 2L4 and the drop down will filter to […]

Structural Property Calculator — Improved Dec 2019

# calc> ddet(..w8x31) # not case sensitive 8.0 # # On assignment, now, the calculator # returns __str__(object) # the string representation of the object # # Therefore, # On assignment of an AISC shape the calculator # returns __str__(shape) # the string representation of the shape # calc > a = ..w8x31 # not […]

Structural Property Calculator on iPad/iPhone using Pythonista Oct 2019

# General use as a numerical calculator calc > a = 3 calc > b = 4 calc > c=(a**2+b**2)**0.5 # white space does not matter calc > a 3.0 calc > b 4.0 calc > c 5.0 calc > 5 + (30 * 3 ** 2) – 23/46 274.5 # Use with structural properties […]