Wikipedia:Reference desk/Archives/Mathematics/April 2018

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April 3

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 3

1. A query with triple products

April 7

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 7

1. Name for ellipse-like shape that resembles a dumb-bell
2. Is there a constant?

April 8

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 8

1. Series

April 9

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 9

1. A late note

April 10

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 10

1. Worst hand in the addition game?
2. Name of a mathematician on whose shoulders Newton stood

April 11

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 11

1. string harmonic

April 12

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 12

1. size of largest gap in partition

April 13

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 13

1. Largest multiset that cannot be partitioned in two equal sum sets

April 17

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 17

1. Intersecting two Pell equations

April 18

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 18

1. Probability of having two birthdays fall on two consecutive days
2. Fractions and exponents in Microsoft Word

April 19

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 19

1. Recurrence Solution

April 20

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 20

1. Bridge events

April 21

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 21

1. Squares with odd digits
2. Decidability of Arithmetic
3. Decidability of Arithmetic (a second question)
4. Is there any arithmetical proposition about natural numbers that is equivalent to Continuum hypothesis?
5. Flat response
6. "x must be positive"

April 24

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 24

1. A distance in the symmetric group?

April 25

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 25

1. Non-standard "additions" on the real numbers
2. A quotient of the symmetric group
3. Length and width of a rectangle with only the area

April 26

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 26

1. Different ways of calculating center of mass

April 27

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 27

1. Types of Measurement

April 28

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 28

1. odd, monotone, continuous, bounded

April 29

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 29

1. Solving a recurrence

April 30

Wikipedia:Reference_desk/Archives/Mathematics/2018 April 30

1. partition unit interval into countably many identical pieces
2. Fundamental theorem of normal axonometry