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Q&A

General Q&A about all branches of theoretical and applied mathematics, including closely-adjacent sciences where the central question is about the math.

83%
+8 −0
Classification of topological points

1 answer  ·  posted almost 2 years ago by celtschk‭  ·  last activity over 1 year ago by Ezekiel‭

77%
+5 −0
71%
+3 −0
Cutting the square

0 answers  ·  posted almost 2 years ago by Grove‭  ·  edited over 1 year ago by Grove‭

71%
+3 −0
75%
+4 −0
In $P(X\leq q)$, what do we call $q$?

1 answer  ·  posted almost 2 years ago by anoldmaninthesea‭  ·  last activity over 1 year ago by gramps‭

81%
+7 −0
Are 3 10% chances better than one 30% chance (when penalized by a variable for failures)?

3 answers  ·  posted over 1 year ago by dustytrash‭  ·  last activity over 1 year ago by Grove‭

75%
+4 −0
80%
+6 −0
Why always rationalize a denominator?

3 answers  ·  posted almost 2 years ago by msh210‭  ·  last activity almost 2 years ago by Derek Elkins‭

44%
+2 −3
Intuitively, what does the 1 mean in $\dfrac{a}{b} = \dfrac{1}{\frac{b}{a}}$?

2 answers  ·  posted almost 2 years ago by Chgg Clou‭  ·  last activity almost 2 years ago by nalply‭

66%
+2 −0
87%
+12 −0
Why does the decimal expansion of $1/(10n - 1)$ have this neat pattern?

3 answers  ·  posted almost 2 years ago by The Amplitwist‭  ·  last activity almost 2 years ago by celtschk‭

75%
+4 −0
Proving the Equation of the Pencil of Two Intersecting Circles

1 answer  ·  posted almost 2 years ago by TripleFault‭  ·  last activity almost 2 years ago by msh210‭

80%
+6 −0
The probability distribution of rolling $n$ dice and keeping $k$ highest

1 answer  ·  posted 2y ago by tommi‭  ·  last activity almost 2 years ago by Peter Cooper Jr.‭

57%
+2 −1
Equation of a line given some parametrized points on it and an area

1 answer  ·  posted almost 2 years ago by msh210‭  ·  last activity almost 2 years ago by msh210‭

71%
+3 −0
Method to calculate the area of a cyclic n-gon

0 answers  ·  posted almost 2 years ago by Razetime‭  ·  edited almost 2 years ago by Razetime‭

75%
+4 −0
Using maximum of forecasted values to forecast maximum

1 answer  ·  posted almost 2 years ago by Guilherme Costa‭  ·  last activity almost 2 years ago by Stephan Kolassa‭

77%
+5 −0
Which of the multiple definitions of correlation to use?

0 answers  ·  posted almost 2 years ago by Mithrandir24601‭  ·  last activity almost 2 years ago by r~~‭

80%
+6 −0
Discrete data: Graphs and skewness

2 answers  ·  posted almost 2 years ago by Nezar ‭  ·  last activity almost 2 years ago by 1muflon1‭

40%
+0 −1
Existence of a set of all sets

2 answers  ·  posted almost 2 years ago by MathPhysics‭  ·  last activity almost 2 years ago by Derek Elkins‭

77%
+5 −0
Similar triangles with the same area

2 answers  ·  posted almost 2 years ago by msh210‭  ·  last activity almost 2 years ago by DonielF‭

71%
+3 −0
Asymptotics of counting integers by prime signature

1 answer  ·  posted almost 2 years ago by Peter Taylor‭  ·  last activity almost 2 years ago by Derek Elkins‭

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