• The du (disk usage) page now has information on the -x flag which is used count the space used on one filesystem only.

• New Introduction To Asynchronous Programming In Python with information on asynchronous programming in Python, including the keywords async/await, event loops, futures, coroutines and more.

• Add a new Introduction To S3 page.

• New tutorial on Standard Deviations.

• Updated the Qt page with a section on how to allow file names with capital letters in Qt Creator.

• New tutorial on the Modality Independent Neighbourhood Descriptor (MIND).

• New tutorial on the Self-Similarity Context (SSC). This is related to MIND.

• New section on Optimization.

• New Satellites section under Space.

• New tutorial on Jupyter (incl. Jupyter Notebooks and Jupyter Labs).

• Updated the rm (remove) page with workaround examples for when you get the argument list too long error.

• The page on Electronic Noise moved from Electronics->Test And Measurement to Electronics->Circuit Design.

• Renamed the Fast Fourier Transform page to the Fourier Transform page, as it now contains information about other Fourier transforms.

• Added graphs of 1D Fourier transformations:

and animated .gifs of 2D Fourier transformations:

• Updated the pytest page with info on mark (markers) and pytest naming conventions.

• Removed the updates directory that all monthly update posts were under.

• Added a tutorial on pandas, a popular data analytics library for Python.

• Updated the Python Debugging page with more info on pdb.

• Updated the Passive Filters page with more information on low-pass RC filters, including plots of the frequency response:

• I created a public mbedded.ninja project on CircuitMaker at https://workspace.circuitmaker.com/Projects/Details/GeoffreyHunter/mbedded-ninja. I am going to trial out CircuitMaker as a tool for drawing schematic diagrams for this blog. In the past I have used Altium (not free), MultisimLive and InkScape (free but is a general vector graphics editor, not a dedicated electronics CAD program).

• Added the Command-Line CSV Viewer page, which contains information on how to cleanly view CSV files from the Linux command-line.

• Added a new page about the programming language Julia.

• The Component Designators page was updated. The mobile unfriendly one-big-table design was removed in favour of separate sections for each component and designator/schematic symbol. Some of the symbols were also updated using InkScape.

• The PCB Design Tools section of the main PCB Design page was moved onto it's own PCB Design Tools page.

• All section on the main PCB Design page regarding PCB layers were moved into their own new PCB Layers page.

• Big updates to the Convolution page, including the addition of a worked example where the convolution of two box-car functions is calculated.

• Added a new page on less, the basic Linux command-line utility for displaying text.

• Added a new Image Processing subsection under Programming->Signal Processing. Added a new Morphology page under the Image Processing section.

• Addition of information on git commit --fixup and git log to the git page.

• Addition of ownership (chown) information to the Users, Groups, And Permissions In Linux page.

• Added a LICENSE.txt (containing the MIT license) to many of my Git repos, including:

  • AltiumScriptCentral
  • CppLinuxSerial
  • CppTemplate
  • CppUtils
  • FunctionPointerStateMachineExample
  • MPid
  • MRingBuff
  • LinuxCanBus
  • YoctoHelloWorldApp

• Released v5.0.0 of MPid, which included the following changes:

  • Added .gitignore file.
  • Added LICENSE.txt (MIT license).
  • Replaced Make build script with CMake.
  • Replace the custom four number versioning with the standardized semantic versioning (three number).
  • Changed README from ReStructuredText to Markdown format.

• Updates to the rsync page including a redesign of the Options section.