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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.

33%
+0 −2
50%
+0 −0
40%
+0 −1
50%
+1 −1
40%
+0 −1
Notation for Euclidean Norm

1 answer  ·  posted 12mo ago by Guilherme Costa‭  ·  last activity 12mo ago by tommi‭

80%
+6 −0
How to show if a set is simply connected?

1 answer  ·  posted 12mo ago by kreijstal‭  ·  last activity 12mo ago by Derek Elkins‭

60%
+1 −0
proving relative lengths on a secant

1 answer  ·  posted 1y ago by msh210‭  ·  last activity 1y ago by Peter Taylor‭

57%
+2 −1
difference between quotient rule and product rule

3 answers  ·  posted 1y ago by deleted user  ·  last activity 1y ago by msh210‭

18%
+0 −7
75%
+4 −0
Is this topology basis dependent?

1 answer  ·  posted over 1 year ago by celtschk‭  ·  last activity 1y ago by Incnis Mrsi‭

71%
+3 −0
Intuitively, why's X% of Y = Y% of X?

1 answer  ·  posted 1y ago by Chgg Clou‭  ·  last activity 1y ago by celtschk‭

37%
+1 −3
66%
+2 −0
Why aren't $z_1=f(xy)$ and $z_2=f(x/y)$ functions of 2 variables?

1 answer  ·  posted 1y ago by VLDR‭  ·  last activity 1y ago by celtschk‭

44%
+2 −3
57%
+2 −1
50%
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62%
+3 −1
Why should a non-commutative operation even be called "multiplication"?

2 answers  ·  posted over 1 year ago by theabbie‭  ·  last activity over 1 year ago by celtschk‭

37%
+1 −3
How can I generalize a picture for the Mean Value Theorem to the Generalized MVT?

1 answer  ·  posted over 1 year ago by VLDR‭  ·  edited over 1 year ago by VLDR‭

50%
+2 −2
What story and one-digit Natural Numbers explain Bayes' Theorem chart most simply?

0 answers  ·  posted over 1 year ago by DNB‭  ·  edited over 1 year ago by Moshi‭

83%
+8 −0
Classification of topological points

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

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

0 answers  ·  posted over 1 year 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 over 1 year 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 over 1 year ago by msh210‭  ·  last activity over 1 year 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 over 1 year ago by Chgg Clou‭  ·  last activity over 1 year ago by nalply‭

66%
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87%
+12 −0
75%
+4 −0
Proving the Equation of the Pencil of Two Intersecting Circles

1 answer  ·  posted over 1 year ago by TripleFault‭  ·  last activity over 1 year ago by msh210‭

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

1 answer  ·  posted over 1 year ago by tommi‭  ·  last activity over 1 year ago by Peter Cooper Jr.‭

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