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# Category Archives: NumPy and SciPy

## More on combined shear and bending design to AS 3600

Further to the last post on this subject I have been looking at procedures to speed up design for shear to AS 3600 when the “refined” analysis procedure is used. The issues that need to be addressed are: I have … Continue reading

Posted in Beam Bending, Concrete, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs
Tagged Brents method, Combined shear and bending, Excel, Longitudinal shear force, Python, PyXLL, SciPy, shear capacity, UDFs
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## Latex Maths Text in Excel

There have been many posts here looking at alternative ways of working with functions entered as text on a spreadsheet, and working with units, most recently here. One drawback with this approach is that text in an Excel cell must … Continue reading

Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, PyXLL, UDFs
Tagged EvalU, Excel, Latex, Math Text, mpmath, Pint, Python, PyXLL, Sympy, UDFs, Unit-aware calculation
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## Linking to Python help from Excel

The py_Numpy spreadsheet presented in the previous post has been updated: The new version can be downloaded from: py_Numpy.zip As before, the pyxll add-in is required for the connection from Excel to Python. All the available functions are listed on … Continue reading

Posted in Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs
Tagged Display Python help, Excel, Link to Python on-line help, Numpy, Python, PyXLL, UDFs
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## Calling Numpy polynomial functions from Excel

The Numpy polynomial related function discussed in recent posts can now be downloaded from: py_Numpy.zip The download file includes Python code and a sample spreadsheet. Required installed software is Python, Numba and pyxll to call the code from Excel. Some … Continue reading

Posted in Curve fitting, Excel, Link to Python, Maths, NumPy and SciPy, PyXLL, UDFs
Tagged Excel, Link to Python, Numpy, PyXLL, UDFs
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## Solving cubic equations – background and timing

For more information on the polynomial functions, including quartic and higher order solvers, see: Solving Quadratic, Cubic, Quartic and higher order equations; examples Re-reading the Wikipedia article on solving cubic equations, I noticed that the trigonometrical solution for finding 3 real … Continue reading

Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, PyXLL, UDFs, VBA
Tagged cubic equations, Excel, Numba, Numpy, Polynomials, Pyhon, PyXLL, Quartic equations, UDFs, VBA
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