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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.

Filters (None)
50%
+0 −0
"A occurred" vs. "something must happen"

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

66%
+2 −0
How can I deduce which operation removes redundacies?

3 answers  ·  posted 3y ago by DNB‭  ·  edited 2y ago by DNB‭

33%
+0 −2
50%
+1 −1
62%
+3 −1
Why are you permitted to define $1 − 1 + 1 − 1 + . . .$?

1 answer  ·  posted 2y ago by Chgg Clou‭  ·  last activity 2y ago by JRN‭

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

1 answer  ·  posted 2y ago by Guilherme Costa‭  ·  last activity 2y ago by tommi‭

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

1 answer  ·  posted 3y ago by kreijstal‭  ·  last activity 3y ago by Derek Elkins‭

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

1 answer  ·  posted 3y ago by msh210‭  ·  last activity 3y ago by Peter Taylor‭

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

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

18%
+0 −7
75%
+4 −0
75%
+4 −0
Intuitively, why's X% of Y = Y% of X?

1 answer  ·  posted 3y ago by Chgg Clou‭  ·  last activity 3y ago by celtschk‭

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

1 answer  ·  posted 3y ago by TextKit‭  ·  last activity 3y ago by celtschk‭

44%
+2 −3
57%
+2 −1
50%
+0 −0
50%
+2 −2
83%
+8 −0
Classification of topological points

1 answer  ·  posted 3y ago by celtschk‭  ·  last activity 3y ago by Technically Natural‭

71%
+3 −0
Cutting the square

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