Tag Archives: SciPy

Transferring different data types to/from Python with pyxll

Posted on 12/05/2026 by dougaj4

When a user defined function (UDF) is created in Excel with Python and pyxll the data type of each argument can be specified, either in the @xl_func decorator, or with a separate @xl_arg decorator for each argument. I prefer the … Continue reading →

Posted in Arrays, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , , , , | Leave a comment

Scipy-statistics with distributions

Posted on 01/05/2026 by dougaj4

The Scipy statistics functions last presented here have now been updated with the addition of links to the numerous distribution functions. The py_Stats spreadsheet, with associated Python code in PythonStatsFuncs3.py and pyScipy3.py, and also minor updates to the pyNumpy.py code, … Continue reading →

Posted in Arrays, Excel, Link to Python, Maths, Newton, NumPy and SciPy, Python Pandas, PyXLL, UDFs | Tagged , , , , , , , , , | Leave a comment

Alternative iterative solvers

Posted on 03/03/2026 by dougaj4

This post looks at alternative solutions to a problem posted on Quora: How can 2^x = 10x be solved? One of the alternatives requires a new function linking to Scipy that has been added to the pyScipy module, that can be downloaded … Continue reading →

Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, PyXLL, UDFs, VBA | Tagged , , , , , , , , | Leave a comment

Long integers in Python and Excel and py_Fact

Posted on 27/08/2025 by dougaj4

I have added a new py_Fact function to the py_Scipy module, that returns the factorial of an integer as a float if it is up to 15 digits long, or a string for longer numbers. The revised code, and the … Continue reading →

Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , | Leave a comment

Evaluate and display definite integrals in Excel with Latex and Matplotlib

Posted on 09/08/2025 by dougaj4

The py_Evalu spreadsheet was last presented at Scipy Functions with Excel and pyxll 5 – Evaluate with Units and included the Plot_Math function, which converts a text string to Latex format, then uses Matplotlib to convert this to a graphic image, … Continue reading →

Posted in Excel, Link to Python, Maths, Newton, Numerical integration, PyXLL, UDFs | Tagged , , , , , , , , , , , , | Leave a comment