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Tag Archives: Excel
More on trend line equations on line charts
In the previous post we saw that if a trend line equation is added to a line chart it will return the wrong coefficients if the x values are not a continuous sequence of integers, starting at 1 (click on … Continue reading
Posted in Charts, Excel, Maths, Newton
Tagged chart trend line, Charts, Excel, line chart, XY chart
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Displaying trend line equations on line charts
This post is prompted by a recent comment at Using LINEST for non-linear curve fitting which found that the trend line formula displayed on a chart was totally different from that found using the Linest function. The problem was caused by using a … Continue reading
Posted in Charts, Charts, Excel, Maths
Tagged Chart, Excel, Show trend line equation, Trend line
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RCInteract and RC Design Functions 7.03
Since the previous post, I have updated the notes in the RC Design Functions spreadsheet to reflect the fact that with the recent update to the Bridge Design Code (AS 5100) the reinforced concrete strength design requirements for beam bending … Continue reading
Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged ACI318, AS3600, AS5100, Combined bending and axial load, Eurocode2, Excel, Interaction Diagram, RC Design Functions, Reinforced Concrete, UDF, VBA
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RC Design Functions 7.03
The latest update to my RC Design Functions spreadsheet has just been uploaded, and is available for free download (including full open-source code) from: RC Design Functions7.zip The main new feature in the latest version is a new RCInteract function, which generates an … Continue reading
Formatting Text from VBA
In a recent Eng-Tips thread someone wanted a VBA routine to combine a value with different + and – tolerance values, formatted as superscript and subscript. Eng-Tips (and Tek-Tips) regular, Skip Vought, came up with a macro to do the job, … Continue reading
