Follow-up: Birthday Magic Square

This is my follow-up video to my birthday magic squares video    • How to make a Birthday Magic Square   --- Yeah, I know the audio is messed up. It's not the mic, it's because I recorded via OBS, and that messed up the audio. Sometimes it's difficult to get all the tech working. I tried. If the audio is really hurting your ears, I process the audio a bit and made an unlisted version of this video with different audio    • Follow-up Birthday Magic Square with diffe...   At 2:20 I point at a group of four and say it adds to 43. That was a mistake. At 27:40 I said April but typed in 03. Whoops. --- Here is my excel spreadsheet for creating birthday magic squares https://singingbanana.com/birthdaymag... Here is the page by Christian Lawson-Perfect https://somethingorotherwhatever.com/... And I forgot to say that Christian is occasionally available to make things like this for commission. Wikipedia: https://en.wikipedia.org/wiki/Magic_s... Euler's method: https://en.wikipedia.org/wiki/Magic_s... pandiagonal squares: https://en.wikipedia.org/wiki/Pandiag... And here are the videos for Further Maths Wales:    • Fideos Hybu TGAU GCSE Boost Videos