Follow-up: Birthday Magic Square

This is my follow-up video to my birthday magic squares video
https://youtu.be/hNn0j4Kay8g

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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 https://youtu.be/ah4WplJqaDA

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.
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Here is my excel spreadsheet for creating birthday magic squares
https://singingbanana.com/birthdaymagicsquarescreator.xlsx

Here is the page by Christian Lawson-Perfect
https://somethingorotherwhatever.com/birthday-magic-square/
And I forgot to say that Christian is occasionally available to make things like this for commission.

Wikipedia: https://en.wikipedia.org/wiki/Magic_square
Euler's method: https://en.wikipedia.org/wiki/Magic_square#Method_of_superposition
pandiagonal squares: https://en.wikipedia.org/wiki/Pandiagonal_magic_square

And here are the videos for Further Maths Wales:
https://www.youtube.com/playlist?list=PL0ThtFmyYmsslQn1M1KHmHwYBKBsEZG5e

Видео Follow-up: Birthday Magic Square канала singingbanana