Convenient and lightning fast backups with rsync

~9 minutes to read

Cloud storage became affordable a long time ago while internet connection speeds have increased dramatically over the years. Yet, there is still a strong case to be made for daily backups of a whole system and for this purpose, there are few options to contend with rsync.


Exponentiation in Modular Arithmetic Made Easy

~3 minutes to read

While playing around in the Python interpreter to validate answers to mathematical questions, I quickly found out that very large exponents are dealt with very inefficiently by default as they are simply evaluated as is. That’s where Python came to its own rescue.


Have You Been Pwned?

~4 minutes to read

Has your password been leaked in a major breach? You can find out thanks to Have I Been Pwned?… Or you can use their API and stop worrying about your password being sent through your Web browser!


Number of Paths in a Grid… or in Life

~5 minutes to read

Finding one’s way in life is not easy because there are so many paths we can take at any moment. Here is a way to look at it mathematically!