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Category Archives: Newton
xlSciPy – Python SciPy for Excel; Update with new functions
The xlSciPy spreadsheet, previously described here, has been updated with new functions for integration, finding equation roots and maxima and minima, solving systems of non-linear equations, and evaluation of equations entered as text. The new version (including full open-source VBA … Continue reading
Posted in Excel, Link to Python, Maths, Newton, Numerical integration, NumPy and SciPy, UDFs, VBA
Tagged Excel, ExcelPython, Integration, minimization, Python, root finding, SciPy, SciPy.optimize, solvers, UDF, VBA
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ConBeamU 4.08
The continuous beam spreadsheet has had another update to fix a problem when point loads were applied to cantilevers, and the first support position was not listed as an output point. The new version (4.08) can be downloaded from: ConbeamU.zip … Continue reading
Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, UDFs, VBA
Tagged ConBeamU, continuous beam analysis, Excel, moving load, Strand7, UDF, VBA
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Paper bridge
Making a model bridge out of paper is pretty easy. Making a full size bridge, strong enough to carry a Range Rover, out of just paper takes a bit of doing: It seems the guy who built the bridge (Steve … Continue reading
Posted in Arch structures, Newton
Tagged Arch bridges, China, Paper bridge, Range Rover
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The VBA Decimal data type
This is what the Microsoft on-line help says about using the Decimal data type in VBA “” At least that is what the Microsoft search listed for me, and Google listed nothing from Microsoft related to VBA on the first … Continue reading
Posted in Excel, Maths, Newton, UDFs, VBA
Tagged Decimal data type, high precision math functions, VB and VBA differences, XNumbers
4 Comments
Solving non-linear equations with two or more unknowns – 5
This will be the last of the series on solving non-linear equations (for now). Up until now all the examples have had two unknown values, and two target values. This can be extended by making three changes to the code: … Continue reading
Posted in Beam Bending, Concrete, Excel, Link to Python, Maths, Newton, NumPy and SciPy, UDFs, VBA
Tagged Excel, ExcelPython, moment curvature, Newton's Method, Python, SciPy, SciPy optimize function, solving non-linear equations, tension stiffening, two or more objectives, two or more unknowns, UDF, VBA
3 Comments