Wikipedia:Reference desk/Archives/Mathematics/December 2017

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December 4

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 4

1. Subring of prime ring
2. No LaTeX phantom in WP? Work around?

December 5

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 5

1. Matching birthdays
2. Successor function paradox loop?

December 6

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 6

1. A question about a countable bijection
2. Two questions about density

December 8

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 8

1. Three-way vertex query

December 9

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 9

1. Sines in a triangle

December 10

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 10

1. Roulette

December 12

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 12

1. Cheryl’s Birthday

December 13

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 13

1. Infinite Product

December 14

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 14

1. Notation for applying function to series
2. Drawing ellipse, from angled cylinder

December 15

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 15

1. colorize equations for better comprehension

December 16

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 16

1. 4 sided die procedure.

December 17

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 17

1. What is the expected ratio of long "stick" to short "stick"?
2. Three questions
3. Converting sources of uniform random integers
4. Group theory question

December 19

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 19

1. Are these groups isomorph to $(BbbQ,+)$
2. What is a lampshade?

December 20

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 20

1. Average sequences
2. Infinite Product(2)

December 21

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 21

1. Texas Hold 'em question...

December 23

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 23

1. Union of half planes in linear programing
2. Number of correct decimal digits when evaluating $pi$
3. Can I take apply to the University of Cambridge

December 25

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 25

1. integration

December 27

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 27

1. What is the probability that a prisoner will be set free?
2. homotopy books
3. Five-suit poker probabilities

December 28

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 28

1. Untitled question
2. When did the last country switch to Western-looking numerals?

December 30

Wikipedia:Reference_desk/Archives/Mathematics/2017 December 30

1. What is the minimum amount of information to rotate a point in 3D Cartesian space?
2. Why is the interval when a < b and a,b real numbers then [b,a]=[a,a)=(a,a]=(a,a)=empty set?