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Oct
15
answered How does my professor come up with the recursive case in this algorithm analysis?
Oct
8
answered Which complete graphs are (edge) magic?
Sep
17
answered Proof for solar declination angle?
Sep
16
answered Kaprekar's constant-related problem
Sep
13
answered Prove that every practical number is either a power of two or a power of two times a non-trivial polygonal number
Sep
10
answered How find this vmatrix of this $a_{n}=\frac{(2n-1)!!}{(2n)!!}$
Sep
4
answered Will this Turing machine ever halt?
Jul
28
answered Can you get the exact real value of $ \left((-1)^{\frac{1}{180}}\right)^{89}-\left((-1)^{\frac{1}{180}}\right)^{91}$?
Jul
23
answered Is it possible to build a circle with quadratic Bézier curves?
Jul
18
answered Finding a planar graph satisfying these properties
Jul
13
answered Are cross-references context-free?
Jul
6
answered Maximum Distance between points on circle
Jul
4
answered Intersection of cubic bezier curve and circle
Jun
27
answered Convert spherical coordinates to Cartesian coordinates for a vector
Jun
18
answered Directions in spherical coordinates
Jun
17
answered multiplication in GF(256) (AES algorithm)
Jun
12
answered Probability of 7 white chessboard squares without neighbours
Jun
7
answered How many different Shidoku Boards are there?
May
23
answered Eratosthenes-like sieve - infinitely many left unstruck?
May
20
answered RSA: What message will Alice receive?