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Category Archives: Link to Python
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: A large number of Numpy functions added. Return function help documentation to the spreadsheet for a selected function. View Numpy on-line documentation from the function Wizard. The new version … 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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Working with Python polynomials from Excel
Python polynomial functions have several features that require manipulation of data passed from Excel: In Python polynomial coefficients are listed in order of increasing powers of x (a + bx + cx^2 …), but they are more usually listed with … Continue reading
Posted in Arrays, Excel, Link to Python, PyXLL, UDFs
Tagged complex numbers, Complex to real, Excel, Numpy, Polynomials, Python, PyXLL, Real to complex, Reversing arrays, UDFs
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