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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.

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33%
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What is "continuous" in Math?

3 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by deleted user

40%
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Is $x=\int \int \ddot{x}\mathrm dx \mathrm dx$?

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by celtschk‭

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42%
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42%
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How do mathematicians measure shape perimeters?

2 answers  ·  posted 2y ago by deleted user  ·  edited 2y ago by deleted user

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How to visualize division in the Odds form of Bayes's Theorem?

0 answers  ·  posted 2y ago by DNB‭  ·  edited 2y ago by DNB‭

81%
+7 −0
When and how should the $Z_n^2$ statistic be used?

1 answer  ·  posted 3y ago by HDE 226868‭  ·  last activity 2y ago by HDE 226868‭

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40%
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What is the meaning of integration under integral sign?

1 answer  ·  posted 2y ago by deleted user  ·  last activity 2y ago by deleted user

40%
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Why does “unless” mean “if not”?

2 answers  ·  posted 3y ago by PSTH‭  ·  edited 2y ago by Peter Taylor‭

33%
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50%
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How to derive some trigonometric formulas?

2 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by deleted user

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A formal-logic formula for decimal to binary conversion

3 answers  ·  posted 2y ago by deleted user  ·  last activity 2y ago by r~~‭

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33%
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If k = 1, why $n(n-1) \dots \color{red}{(n-k+1)} = n$?

1 answer  ·  posted 2y ago by DNB‭  ·  edited 2y ago by DNB‭