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+--- Thread: [MSE]root expressions and sine (/showthread.php?tid=1717)
[MSE]root expressions and sine - tommy1729 - 02/27/2023
mick has posted a fun question on MSE.
Kinda galoi-ish ... galoisisch euh like about radicals.
More or less about roots of positive quantities and roots of unity.
https://math.stackexchange.com/questions/4647231/sin-frac-pip-not-expressible-by-positive-radicals-and-sin-frac-pi
enjoy
or
goodnight
regards
tommy1729
RE: [MSE]root expressions and sine - tommy1729 - 02/27/2023
Fun fact : self-reference is possible ; expressing functions values in terms of themselves.
ok in principle that is not allowed.
but the minimal polynomial can be turned into a fixpoint equation and those can often be given by radicals.
regards
tommy1729
RE: [MSE]root expressions and sine - tommy1729 - 03/03/2023
https://mathoverflow.net/questions/441986/sin-frac-pip-not-expressible-by-positive-radicals-and-sin-frac-pi
posted on MO too now apparantly.
I have been told there are close voters.
One wrote a comment.
Despite that +1 score at the moment.
weird imo.
Yet I am not surprised.
I hope it stays there.
regards
tommy1729