The article discusses 11 mathematical symbols that the author had not encountered in a long time, mentioning that some of them haven’t been used since 2014. It reflects on the author’s experiences with these symbols, which have largely been forgotten since around 2020. The piece offers a nostalgic look back at these symbols and their relevance in mathematical contexts. For more details, readers are encouraged to continue reading the full article on Level Up Coding.

https://levelup.gitconnected.com/11-math-symbols-that-i-forgot-about-until-recently-4a69b008d391?source=rss-e5f30f9ccdaa——2