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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.

71%
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75%
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Is this formula for the minimal sum correct?

1 answer  ·  posted 2mo ago by celtschk‭  ·  last activity 27d ago by celtschk‭

71%
+3 −0
How to calculate remaining volume of a wire spool

2 answers  ·  posted 2mo ago by re89j‭  ·  last activity 2mo ago by Olin Lathrop‭

71%
+3 −0
75%
+4 −0
71%
+3 −0
organizing a library

1 answer  ·  posted 3mo ago by msh210‭  ·  last activity 3mo ago by celtschk‭

71%
+3 −0
Is the really only one solution?

0 answers  ·  posted 3mo ago by Grove‭  ·  edited 3mo ago by Grove‭

60%
+1 −0
71%
+3 −0
The gcd of powers in a gcd domain

0 answers  ·  posted 4mo ago by Snoopy‭  ·  edited 4mo ago by Snoopy‭

44%
+2 −3
Isn't "any, some, or all" redundant? Why not write just "any"?

1 answer  ·  posted 5mo ago by Chgg Clou‭  ·  last activity 5mo ago by Tim Pederick‭

50%
+0 −0
71%
+3 −0
Notation for nested exponents

1 answer  ·  posted 6mo ago by JRN‭  ·  last activity 5mo ago by leovt‭

70%
+5 −1
equilateral triangle inscribed in an ellipse

2 answers  ·  posted 8mo ago by msh210‭  ·  last activity 5mo ago by Anonymous‭

30%
+1 −5
75%
+4 −0
Optimising a 3 value problem (well 2 really)

1 answer  ·  posted 6mo ago by KalleMP‭  ·  last activity 6mo ago by Peter Taylor‭

81%
+7 −0
Complex numbers in 2D, quaternions in 4D, why nothing in 3D?

2 answers  ·  posted 8mo ago by Fred Wamsley‭  ·  last activity 6mo ago by Derek Elkins‭

60%
+1 −0
How $ijk=\sqrt{1}$?

2 answers  ·  posted 10mo ago by deleted user  ·  last activity 6mo ago by Tim Pederick‭

80%
+6 −0
60%
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71%
+3 −0
Matrices with rotational symmetry

1 answer  ·  posted 7mo ago by Peter Taylor‭  ·  last activity 7mo ago by Peter Taylor‭

50%
+0 −0
50%
+0 −0
Sample skewness consistency [closed]

0 answers  ·  posted 9mo ago by Guilherme Costa‭  ·  closed 9mo ago by Peter Taylor‭

33%
+0 −2
71%
+3 −0
Maximize Independent Variable of Matrix Multiplication

1 answer  ·  posted 10mo ago by Josh Hyatt‭  ·  edited 10mo ago by Josh Hyatt‭

60%
+1 −0