Category Archives: Excel

Using conditional formatting with array formulas

Posted on 17/08/2019 by dougaj4

A recent Quora question asked “How do I highlight the number closest to an initial number in a row in Excel?“.  The answer by Bill Jelen provides a good example of using conditional formatting with an array formula: In my … Continue reading →

Posted in Arrays, Excel | Tagged , , , | Leave a comment

64 bit Excel and the Strand7 API

Posted on 13/08/2019 by dougaj4

Back in May 2017 I posted a sample spreadsheet using the Strand7 API to allow Excel to read and write Strand7 node data and results.  A comment noted at the time that the spreadsheet was not working with 64 bit … Continue reading →

Posted in Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7 | Tagged , | Leave a comment

64 bit Excel and PtrSafe

Posted on 31/07/2019 by dougaj4

Installing my Office 365 subscription on a new computer I discovered it had decided (without asking) to upgrade itself to the 64 bit version, which resulted in some of my spreadsheets not working on the new system.  The main problem … Continue reading →

Posted in Excel, VBA | Tagged , , , , | 1 Comment

Solving the Lagrangian Point equation for the Moon

Posted on 23/06/2019 by dougaj4

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

ULS design of circular reinforced concrete columns

Posted on 09/06/2019 by dougaj4

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