Mathematics
Alex Jones
  • Member for 5 years, 4 months
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48
Why are algebraic structures preserved under intersection but not union?
Dec 14 '18
39
Can area of rectangle be greater than the square of its diagonal?
Nov 15 '18
18
Can differentiation be thought of as a function?$ $
Apr 26 '17
12
Find the height of a bar, given the lengths of shadows cast by it and another bar
Oct 14 '17
9
Why do PDE's seem so unnatural?
Apr 8 '18
8
Why not include as a requirement that all functions must be continuous to be differentiable?
Jun 20 '18
8
Does every vector have an additive inverse?
Apr 22 '17
8
A non-linear coupled second order ODE for a geodesic
Apr 14
7
What's going on with this 5-line proof of Fermat's Last Theorem?
Jun 27 '16
6
Matrix with $A_{ij} = a_i a_j$ for some vector $a\in\mathbb{R}^n$
Jun 25 '18
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50
Can wind instruments be played out of tune?
17
OR gate vs. connecting two wires?
9
Zelda received a bizarre postcard
7
Old books you would like to have reprinted with high-quality typesetting
5
Make 37+32=55 correct by moving one match

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