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Aug
28
answered Show that from a group of seven people whose (integer) ages add up to 332 one can select three people with the total age at least 142.
Aug
3
asked On the hyperboloid model, if the point $\mathbf{v}$ gets translated to the origin, then where does the point $\mathbf{x}$ go?
Jul
26
asked Why does the Pythagorean Theorem have its simple form only in Euclidean geometry?
Jul
21
answered What's the right way to calculate hyperbolic distance on the hyperboloid model?
Jul
21
asked What's the right way to calculate hyperbolic distance on the hyperboloid model?
Apr
16
asked When (and why) did the convention that exponents are evaluated from right to left arise?
Jan
7
asked How can I prove whether a $9\times 9$ square can be filled with L-shaped pieces in a completely “regular” way?
Nov
29
asked What would a Steiner tree look like for the vertices of a heptagon?
Nov
13
asked Is there any way to use a Fourier Transform or a variant to find periodic increases?
Aug
15
asked Which is greater, $20 \uparrow\uparrow\uparrow\uparrow 20$ or $4 \uparrow\uparrow\uparrow\uparrow\uparrow 4$?
Jul
29
asked Is the non-existence of a general quintic formula related to the impossibility of constructing the geometric median for five points?
Jul
8
asked Subgroups of Sufficiently Large Symmetric Groups / Cayley's Theorem explanation
Apr
3
asked What multigraphs are isomorphic to their dual graph?
Nov
22
asked How can the trefoil knot be expressed in polar coordinates?
Oct
30
asked Why am I getting half the correct answer by using Green's Theorem?
Feb
1
asked Solutions of $\frac{1}{\cos \theta} = a \sin \theta - b$
Oct
3
asked How can the equation of a Bézier curve be transformed from a Bézier basis function to a bivariate function?
Mar
16
answered Graph Theory - How can I calculate the number of vertices and edges, if given this example
Feb
14
asked HAKMEM 39: Repetition-less digit strings
Feb
2
answered Does the graph of $\cos x$ intersect the unit circle other than the point (0,1)?