Wikipedia:Reference desk/Archives/Mathematics/September 2023

= September 3 = Reference_desk/Archives/Mathematics/2023 September 3


 * 1) Can fourteen-segment display be used in a base 36 calculator?

= September 8 = Reference_desk/Archives/Mathematics/2023 September 8


 * 1) Probability question

= September 10 = Reference_desk/Archives/Mathematics/2023 September 10


 * 1) Candelas per square meter

= September 11 = Reference_desk/Archives/Mathematics/2023 September 11


 * 1) On Negative Numbers

= September 12 = Reference_desk/Archives/Mathematics/2023 September 12


 * 1) How Do We Know Of The One Simplicities.

= September 14 = Reference_desk/Archives/Mathematics/2023 September 14


 * 1) What is the next prime p after 3612703 that also divides (p-1)?
 * 2) SVG error in math

= September 15 = Reference_desk/Archives/Mathematics/2023 September 15


 * 1) Probability that all sums are odd
 * 2) Can these numbers be perfect powers?
 * 3) Find the smallest such prime number
 * 4) What is the smallest n such that there exists a holyhedron with n faces?

= September 16 = Reference_desk/Archives/Mathematics/2023 September 16


 * 1) "Strict equidissection" of regular triangle (in Euclidean geometry, or EG) and all possible values of N
 * 2) About trigonometric functions and hyperbolic functions and transcendental numbers
 * 3) Twin prime conjecture

= September 18 = Reference_desk/Archives/Mathematics/2023 September 18


 * 1) Minimal set of prime-strings in base 10.

= September 19 = Reference_desk/Archives/Mathematics/2023 September 19


 * 1) Primes "in the" primes, using triangular addition

= September 20 = Reference_desk/Archives/Mathematics/2023 September 20


 * 1) Random integer factors

= September 21 = Reference_desk/Archives/Mathematics/2023 September 21


 * 1) Vocabulary Question
 * 2) Curious about UTC-Time zone

= September 23 = Reference_desk/Archives/Mathematics/2023 September 23


 * 1) Number of indistinguishable necklaces
 * 2) Are there infinitely many primes whose first digit and last digit are both 7?
 * 3) Are these true?
 * 4) Why the largest number which a scientific calculator does not overflow is 10^100, not power of 2?
 * 5) Log and exponential functions

= September 24 = Reference_desk/Archives/Mathematics/2023 September 24


 * 1) at least one identical vertex, one identical side...
 * 2) Smallest "prime" for which Fermat's last theorem was NOT proved

= September 25 = Reference_desk/Archives/Mathematics/2023 September 25


 * 1) Are there infinitely many primes of the form 1000…0007, 333…3331, 7111…111, or 3444…4447 in base 10?
 * 2) Alternate calendar algorithms
 * 3) 2+2

= September 27 = Reference_desk/Archives/Mathematics/2023 September 27


 * 1) Digit sum
 * 2) Could you create these OEIS sequences and extend existing OEIS sequences?
 * 3) Why not define “division” in rings?
 * 4) Are there n kinds of numerical systems with radix n?
 * 5) Are there n possible number systems with dimension n, if n is power of 2?
 * 6) coloring edges of an icosahedron
 * 7) Limit help

= September 27 = Reference_desk/Archives/Mathematics/2023 September 27


 * 1) Digit sum
 * 2) Could you create these OEIS sequences and extend existing OEIS sequences?
 * 3) Why not define “division” in rings?
 * 4) Are there n kinds of numerical systems with radix n?
 * 5) Are there n possible number systems with dimension n, if n is power of 2?
 * 6) coloring edges of an icosahedron
 * 7) Limit help

= September 28 = Reference_desk/Archives/Mathematics/2023 September 28


 * 1) Probability of a holey cube
 * 2) Help with finding the angle

= September 29 = Reference_desk/Archives/Mathematics/2023 September 29


 * 1) For which natural number n, this is true?
 * 2) Dual polyhedron of rotundas