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Jan
27
awarded  Popular Question
Sep
28
awarded  Yearling
Sep
28
accepted If I want to learn to count in another base to calculate primality, which one should I try?
Sep
28
asked If I want to learn to count in another base to calculate primality, which one should I try?
Sep
27
accepted Any technique to manually find the prime decomposition of a number less than 3000?
Sep
26
asked Any technique to manually find the prime decomposition of a number less than 3000?
Sep
24
awarded  Autobiographer
Sep
4
awarded  Tumbleweed
Apr
12
awarded  Popular Question
Feb
20
awarded  Notable Question
Feb
4
asked Looking for a random statistical biaised function
May
15
comment Why do the French count so strangely?
ahah yes I also wondered about the 4 x 20 when I was young and asked in class... it was that or soixante vingt...
Oct
11
asked It it possible to “compress” a list of large numbers using their prime factors?
Aug
29
comment 2 concentric circles, inner circle has a tangent, relations between those points
isn't it rather $cos \theta = \frac{r}{R}$ ?
Aug
28
comment 2 concentric circles, inner circle has a tangent, relations between those points
I edited my question for more clarity
Aug
28
revised 2 concentric circles, inner circle has a tangent, relations between those points
Explained my problem better
Aug
28
asked 2 concentric circles, inner circle has a tangent, relations between those points
Aug
27
comment Making a logo with processing, can't figure out a coordinate…
I'm close to finding the answer, but the delta will be messy, do you know open-source or free website who can solve this can of equation ? (I'm planning to solve it by hand, but I'm just curious of the existing problem solver software other than mathematica).
Aug
26
comment Making a logo with processing, can't figure out a coordinate…
thanks I think I have more information now, I'll study it further (it could take me while, I'm a little rusted with maths right now)
Aug
26
comment Making a logo with processing, can't figure out a coordinate…
so you end up with $x^2+y^2=xc_1+yc_2=0 $, then I can regroup x and y, but what else ?