Editing Talk:2586: Greek Letters
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Pi also shows up in lots of extremely advanced equations as pi, not as something else, adding edit. 123.456.7890 | Pi also shows up in lots of extremely advanced equations as pi, not as something else, adding edit. 123.456.7890 | ||
− | zeta_0 is also used for the first transfinite ordinal that is unreachable through | + | zeta_0 is also used for the first transfinite ordinal that is unreachable through addition, multiplication, exponentiation, and epsilons subscripting. EDIT: phi is used for the Veblen hierachy. [[User:GcGYSF(asterisk)P(vertical line)e|GcGYSF(asterisk)P(vertical line)e]] ([[User talk:GcGYSF(asterisk)P(vertical line)e|talk]]) 05:11, 26 February 2022 (UTC) |
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Don't you have an English saying: '''simple/easy as π'''? [[User:Nukio|Nukio]] ([[User talk:Nukio|talk]]) 05:51, 26 February 2022 (UTC) | Don't you have an English saying: '''simple/easy as π'''? [[User:Nukio|Nukio]] ([[User talk:Nukio|talk]]) 05:51, 26 February 2022 (UTC) | ||
:the saying is '''easy as pie''' as in the dessert. sometimes we write it '''easy as π''' as a nerdy joke. [[Special:Contributions/162.158.107.230|162.158.107.230]] 08:08, 26 February 2022 (UTC) | :the saying is '''easy as pie''' as in the dessert. sometimes we write it '''easy as π''' as a nerdy joke. [[Special:Contributions/162.158.107.230|162.158.107.230]] 08:08, 26 February 2022 (UTC) | ||
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Related: https://xkcd.com/2520/ [[Special:Contributions/162.158.103.224|162.158.103.224]] 08:59, 26 February 2022 (UTC) | Related: https://xkcd.com/2520/ [[Special:Contributions/162.158.103.224|162.158.103.224]] 08:59, 26 February 2022 (UTC) | ||
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I've found a use for capital Xi: https://en.wikipedia.org/wiki/Harish-Chandra%27s_%CE%9E_function that seems to be from the field of Harmonic Analysis. [[User:Douira|Douira]] ([[User talk:Douira|talk]]) 14:50, 26 February 2022 (UTC) | I've found a use for capital Xi: https://en.wikipedia.org/wiki/Harish-Chandra%27s_%CE%9E_function that seems to be from the field of Harmonic Analysis. [[User:Douira|Douira]] ([[User talk:Douira|talk]]) 14:50, 26 February 2022 (UTC) | ||
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The part that says the farad is "unusually large" is incredibly biased IMO. On the scale of planets its "unusually small", In fact, on the scale of EV's its even pretty normal. The writer is only considering small electronic circuits. Also the Henry is very well scaled to the Farad so how "unusual" is it really? [[Special:Contributions/108.162.241.33|108.162.241.33]] 17:13, 26 February 2022 (UTC) | The part that says the farad is "unusually large" is incredibly biased IMO. On the scale of planets its "unusually small", In fact, on the scale of EV's its even pretty normal. The writer is only considering small electronic circuits. Also the Henry is very well scaled to the Farad so how "unusual" is it really? [[Special:Contributions/108.162.241.33|108.162.241.33]] 17:13, 26 February 2022 (UTC) | ||
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The lowercase epsilon is used much more often for something else - usually to denote that the "variable" on the lefthanded side is a member of the "set" of the righthanded side of the lowercase epsilon. Of course, this is totally unimportant ;-). | The lowercase epsilon is used much more often for something else - usually to denote that the "variable" on the lefthanded side is a member of the "set" of the righthanded side of the lowercase epsilon. Of course, this is totally unimportant ;-). | ||
:You are referring to the "element of" sign, which is distinct from lowercase epsilon (although based on it). | :You are referring to the "element of" sign, which is distinct from lowercase epsilon (although based on it). | ||
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I highly doubt that the use of Ξ has anything to do with it "looking like a UFO." Rather, I'd suggest it's because it's essentially never used, at least among the English speaking mathematicians in the US, and probably Europe. [[User:Douira|Douira]] went out of their way to find an example, and found something increadibly obscure, which supports the point. ''Why'' Ξ is rarely used is another question. Maybe because it could easily be confused for an E or Sigma, with lazy handwritting? Maybe because it's a Greek letter without a direct Latin counterpart, so doesn't correspond with the first letter of any common words? [[Special:Contributions/162.158.63.49|162.158.63.49]] 22:50, 26 February 2022 (UTC)som | I highly doubt that the use of Ξ has anything to do with it "looking like a UFO." Rather, I'd suggest it's because it's essentially never used, at least among the English speaking mathematicians in the US, and probably Europe. [[User:Douira|Douira]] went out of their way to find an example, and found something increadibly obscure, which supports the point. ''Why'' Ξ is rarely used is another question. Maybe because it could easily be confused for an E or Sigma, with lazy handwritting? Maybe because it's a Greek letter without a direct Latin counterpart, so doesn't correspond with the first letter of any common words? [[Special:Contributions/162.158.63.49|162.158.63.49]] 22:50, 26 February 2022 (UTC)som | ||
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Lower-case sigma is also used in sigma-algebras, which is part of the theoretical background underlying statistics, among other things. I second that the lower-case epsilon drawn by Randall is the lunate variant that looks indistinguishable from the "is an element of" symbol and should probably get mentioned. On an unrelated note, there's a story of someone using capital xi at a math conference specifically to annoy some other mathematician who *really* didn't like them. [[Special:Contributions/172.70.211.26|172.70.211.26]] 20:30, 27 February 2022 (UTC) | Lower-case sigma is also used in sigma-algebras, which is part of the theoretical background underlying statistics, among other things. I second that the lower-case epsilon drawn by Randall is the lunate variant that looks indistinguishable from the "is an element of" symbol and should probably get mentioned. On an unrelated note, there's a story of someone using capital xi at a math conference specifically to annoy some other mathematician who *really* didn't like them. [[Special:Contributions/172.70.211.26|172.70.211.26]] 20:30, 27 February 2022 (UTC) | ||
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Alpha is also used in aeronautics for the angle of attack of the airflow over a wing. Exceeding a critical angle of attack leads to an aerodynamic stall, which has been cause of many fatal accidents. | Alpha is also used in aeronautics for the angle of attack of the airflow over a wing. Exceeding a critical angle of attack leads to an aerodynamic stall, which has been cause of many fatal accidents. | ||
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