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# Tag Archives: VBA

## Tanh-Sinh Quadrature update

Following some comments here Graeme Dennes and I have modified the start-up code for the Tanh-Sinh Quadrature spreadsheet to avoid problems opening the file when first downloaded, or copied to a new computer. The new file is located (as before) … Continue reading

Posted in Excel, Maths, Newton, Numerical integration, UDFs, VBA
Tagged Excel, Tanh-Sinh Quadrature, UDFs, VBA
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## Newton-Raphson and Brent’s Method – Solver examples

I recently discovered the Computing Skillset site (via open-struct-engineer), which has good information on the basis and use of the Newton-Raphson method: The Newton Raphson method explained, details, pictures, python code Highly instructive examples for the Newton Raphson method I … Continue reading

Posted in Excel, Maths, Newton, UDFs, VBA
Tagged Brents method, Computing Skillset, Excel, Newton Raphson Method, UDF, VBA
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## Spherical Geometry and Vincenty’s Formulae

Wikipedia has detailed articles on: Spherical Geometry and Vincenty’s Formulae (for geometric calculations on an ellipsoid). The spreadsheet Vincenty.xlsb uses those resources to perform the following calculations, using both on-sheet calculations and VBA user-defined functions (UDF’s): Calculation of distance and … Continue reading

Posted in Computing - general, Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA
Tagged ellipsoid area, ellipsoid distance, Excel, Spherical Geometry, UDF, VBA, Vincenty's Formulae
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## Concrete Stress Blocks

Back in 2010 and 2011 posts here looked at a comparison of alternative stress blocks in the then new AS 3600, and a procedure for calculating parameters for a rectangular stress block exactly equivalent to the Eurocode 2 parabolic-rectangular stress … Continue reading

## Section Properties for Rotated Shapes

I have just posted an update to my section properties spreadsheet, last discussed at: Using Section Properties- Group The new version can be downloaded from: Section Properties07-Group.zip The main sheet provides section properties for a wide variety of defined shapes: This … Continue reading

Posted in Beam Bending, Coordinate Geometry, Excel, Frame Analysis, Maths, Newton, UDFs, VBA
Tagged Excel, section properties, section properties of rotated shapes, UDF, VBA
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