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Gauss’s Formula for Summing Numbers Continued
In an earlier post I mentioned coming across the reasoning followed by Gauss to prove that the sum of the first n numbers is equal to n(n+1)/2. I started wondering if there is no generalization available for this formula: what is the sum of the whole number m to n, m and n included. Following…
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Under Siege
After having watched Half Past Dead I decided to also watch Under Siege again, probably the best Steven Seagal movie. The whole movie takes place on a battleship that is overtaken by a group mercinaries. The crew is locked up while the mercenaries plan to remove all the warheads from the ship. Only 1 crew…
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100 Days of Code Python Bootcamp Progress
As mentioned earlier I am checking out this course on Udemy to see if it is something worth while suggesting to my son. The first 14 days cover the basics and are labelled beginner and 14 days of coding should be doable for him, these are sessions that take 1 to 2 hours each, watching…
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Understanding Gauss’s Formula for Summing Numbers
As mentioned in another post I am checking out a 100 days of code python bootcamp on Udemy and following the beginners section to see if it would be useful for my son. On day 5 loops and the range function are discussed. In one lesson Gauss pops up and the story is told how…
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Olivita in Leuven
This week we went for dinner at Olivita in Leuven. This is a Spanish restaurant in the city center. Probably because we are in the middle of the exam period and there is soccer world championship ongoing there were not many people walking around in the streets and the restaurant was almost empty. As the…
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Serendipity
In the previous blog post I mentioned I was scouting around for a good Python course for my 15 year old son and went of on a tangent about whether AI means you don’t need to know Python at all. Needless to say I still believe that you can benefit from being able to program…
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Why Practical Python Courses Matter for Young (and older) Learners
Recently I was scouting around for a good Python course for my 15 year old son. They way they are teaching it in school is not very practical. There is a lot of text explaining concepts in a web application with questions and code cells where you have to type code and execute. He is…
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HTML For the World Wide Web, Elizabeth Castro: Part 4
Chapters 6 & 7. Page Layout & Hyperlinks Chapter 6 is about styling the layout of your page without css using attributes of for example the <body> tag to set the background colour. All of this is no longer done and this particular example didn’t work in my browser. Some other tags that are no…
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Top Finalists of 2026 Queen Elizabeth Concours Shine at Leuven’s Cello Concert
On Thursday we went to 30cc in Leuven to listen to the number 1, 2 and 3 finalists of the 2026 cello Concours. We saw Leland Ko, Tae-Yeon Kim and Ettore Pagane each play a piece individually with the Brussels Philharmonic Orchestra and then at the end they played a short piece, the 3 of…
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Dutch Mountain Trail Hike Preparations
As mentioned in another post we are planning to walk part of the Dutch Mountain Trail this year. So; not the complete 100km but a little over half of it during 3 days. And we will walk sections, returning to our hotel every day. Some of the preparation started with a hotel found in Heerlen…

