Category Archives: Miscellaneous

I was walking my two dogs in the rain one weekend, when for some reason a thought popped into my head. Would it be possible to display a grayscale image in Excel, where each cell represents a pixel? A couple … Continue reading →

The C# programming language supports local functions where you can define a helper function inside a function that calls the helper, as opposed to the normal approach which is to just define the two functions separately. The idea of local … Continue reading →

I work on both sides of APIs. Mostly I consume and use APIs written by other people, such as the PyTorch library for deep neural networks, the .NET Core framework for many tasks, and the scikit-learn library for machine learning … Continue reading →

Every now and then a programming problem comes along that’s extremely simple in concept, but implementation is surprisingly difficult. As part of a project I was working on I needed to convert a matrix of string values to a matrix … Continue reading →

The Web software development insanity continues its seemingly never-ending quest to generate an infinite number of new frameworks. I looked at Blazor recently. As briefly as possible, Blazor is a framework to create single page Web applications using C# instead … Continue reading →

The Wikipedia entry on inverting matrices lists 10 categories of techniques, and each category has dozens of variations. One of the simplest approaches is to use cofactors and the adjugate (aka adjoint). “Simplest” is relative — inverting a matrix is … Continue reading →