MyWiki:Reference desk/Archives/Mathematics/October 2025

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Welcome to the Wikipedia Mathematics Reference Desk Archives
The page you are currently viewing is a monthly archive index. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages.

October 2

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 2

1. Lower tetration

October 5

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 5

1. transformation on unitary operators
2. Neutral elements notations in rings

October 8

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 8

1. Mistake on probability image.

October 16

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 16

1. Steiner, meet Delaunay

October 19

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 19

1. How do I write Zipf’s law as a sequence?
2. Group cosets notation

October 22

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 22

1. Looking for a summation step function

October 24

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 24

1. Proof of π

October 25

Wikipedia:Reference_desk/Archives/Mathematics/2025 October 25

1. Inverse of a group subset product