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FYI, you used an incorrect character for the degree sign.

Should be ° U+00B0 DEGREE SIGN, not ˚ U+02DA RING ABOVE.

Hmmmm...it's whatever Option+k does on macOS. I thought it was the degree sign because it doesn't actually combine, but apparently degree is option+shift+8 instead.

An acquaintance just about had a nervous breakdown recently because they somehow used ˆ (option+i, used for e.g. î) in a regex instead of ^ and couldn't figure out why such a basic thing was failing.

or just option+0, because degree is like a little 0 I guess?

Ha! I had been thinking Option-K like Kelvin (also a unit of temperature--but ironically one that isn't properly a "degree". Maybe that should have been a hint!)

Option-zero has a tiny underbar for me, which I think is in Bulgarian(?) abbreviations.

º U+00BA MASCULINE ORDINAL INDICATOR, I guess?

https://en.wikipedia.org/wiki/Ordinal_indicator

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