Wikipedia:Reference desk/Archives/Mathematics/October 2016

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October 1

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 1

1. Question about volumes of a cube section.
2. Calculating Sine and Cosine using nothing but a single complex number

October 5

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 5

1. Median range
2. Geometry Origami problem, take 2
3. Russian roulette
4. Inverse cube expression and spirals

October 6

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 6

1. Spherical Trigonometry

October 7

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 7

1. What is the value of these sums
2. Beats me

October 10

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 10

1. Name for such progressions

October 11

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 11

1. How to isolate a variable

October 12

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 12

1. Interpreting how significant the findings are when χ2 (1) #s are given in a study
2. NP-hardness
3. Derivative when working with the field of rational functions

October 14

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 14

1. The ancient Greeks and Euler's polyhedron formula

October 16

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 16

1. Interval (mathematics), Curve

October 17

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 17

1. Plane Projection of a Hyperbola
2. Unitary Transformation
3. Measure of angle formed by absolute value graph

October 18

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 18

1. Triple bar: real or hooey?
2. equation of circle

October 19

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 19

1. Area of an ellipse

October 20

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 20

1. Sum of the reciprocals of the subfactorials

October 21

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 21

1. The union of lines joining points on a variety to a fixed point on it
2. Rare math symbol unicode

October 22

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 22

1. 0.01825 as fraction and percentage

October 23

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 23

1. What is a Zwicky Search?

October 27

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 27

1. Hash functions based on quadratic residues

October 28

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 28

1. if ANOVA fails for a given population X, (and/or Y), under what circumstances can you still cross compare X and Y?

October 29

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 29

1. Is there possibly a relationship between Russell's Paradox, Godel's Incompleteness Theorems, and the Vacuous Truth?
2. Coastlines
3. Can an ultrafilter, on an infinitely countable set, be countable?

October 30

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 30

1. Maths

October 31

Wikipedia:Reference_desk/Archives/Mathematics/2016 October 31

1. If I knew what to call this topic, I wouldn't have posted...