Author Archives: dougaj4

Installing Adobe Reader non-DC version.

Edit 3rd Jan 2026:  As noted in the comments, as far as I know, the old versions of Adobe Reader are no longer available from Adobe, and the links given in this post no longer work. The option to install a … Continue reading

Posted in Computing - general | Tagged , , | 4 Comments

Solving the Lagrangian Point equation for the Moon

This post was prompted by a recent question at Fitting high order polynomials, asking for Excel methods to solve the equations for the radius of the Moon’s Lagrangian Point 1. All the methods described in this post have been added to … Continue reading

Posted in Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , | 4 Comments

Malinda sings A Song About Nothing

Malinda Kathleen Reese mostly sings popular songs, after passing the lyrics through Google Translate multiple times. But this is something else:

Posted in Bach | Tagged , , | Leave a comment

ULS design of circular reinforced concrete columns

The RC Design Functions spreadsheet has been updated (to Version 8.04) with the addition of a CircU function for ULS design of circular reinforced concrete sections under combined bending and axial load.  The new version, including full open-source code, may … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , , , , , , | 2 Comments

ULS Design Functions – update for AS 3600

The ULS Design Functions spreadsheet (last posted here) has been updated to the new Australian Standard for concrete structures; AS 3600-2018.  The new version can be downloaded from: ULS Design Functions.zip Note that the biaxial version included in the download … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 3 Comments