Convolution is a fundamental operation in digital signal processing — Convolution is a fundamental operation in digital signal processing. It is usually defined by the formula:

A simple data compression example — Wavelet transforms are one of the key tools for signal analysis. They are extensively used in science and engineering. Some of the specific applications include data compression, gait analysis, signal/image de-noising, digital communications, etc. This article focuses on a simple lossy data compression application by using the DWT (Discrete Wavelet…

Reuse components to get off the ground quicker! — Vue.js is an elegant framework for front-end development in web applications. However, Vue by itself just provides the framework for building components. It doesn’t provide a collection of ready-to-use UI components. There are a number of great open-source projects providing useful Vue components (or component libraries) in the Vue ecosystem…

With examples from real projects — Sphinx is an amazing tool for writing beautiful documentation. Originally created for the documentation of the Python programming language, it is now popular across numerous developer communities. Most major Python libraries are documented with Sphinx, e.g. NumPy, SciPy, Scikit-Learn, Matplotlib, Django. Several books have been written using Sphinx. …

I recently gave the following chess puzzle to the enthusiasts in my circle. White to win in 3 moves. One of my friends came up with the following two solutions: Solution 1: Re7+ Kf8, Qf7# Solution 2: Re7+ Kxf6, Qe6+ Kg5, Rg7# I had to emphasize that solution 2 is…

A review of linear operators A linear operator or a linear map is a mapping from a vector space to another vector space that preserves vector addition and scalar multiplication operations. …

For open-source Python developers, publishing packages on PyPI is an essential activity. PyPI is quite easy to use. However, there are some gotchas that can make life a bit difficult for beginners. This post is meant to provide some guidance so that unnecessary mistakes can be avoided. The comprehensive documentation…

Let tools take care of CI/CD so that you can focus on development. — Managing the delivery of a large web application requires a lot of work. Having some good continuous integration tools can help in significantly accelerating the development and review process. …

Amazingly fast hardware independent numerical codes in Python — I have been exploring JAX library recently. It is a high performance library for numerical computing developed by Google engineers. Currently, it is a research library (no 1.0 yet) and is not an official Google product. However, it is gaining traction among machine learning engineers. …