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seen Jun 29 at 14:33

Litterarum radices amarae, fructus dulces. (Bitter are the roots of study, but how sweet their fruit.) — Cato


Nov
3
answered Funny identities
Nov
3
revised why have we chosen our number system to be decimal (base 10)
edited body
Nov
3
revised why have we chosen our number system to be decimal (base 10)
added 8 characters in body
Nov
3
comment why have we chosen our number system to be decimal (base 10)
Haha. Sure, and, in particular, it makes the deciliter useful.
Nov
3
comment why have we chosen our number system to be decimal (base 10)
Thanks, J.M. ;)
Nov
3
comment why have we chosen our number system to be decimal (base 10)
I suppose the sexagesimal counting didn't include the thumb because it doesn't have 3 natural and visible segments. It is sufficient to use 4 fingers with 3 segments on one hand and all five digits on the other.
Nov
3
revised why have we chosen our number system to be decimal (base 10)
added 25 characters in body; added 9 characters in body; deleted 3 characters in body
Nov
3
answered why have we chosen our number system to be decimal (base 10)
Nov
3
comment Riemann Zeta Function and Analytic Continuation
I suppose Trevor means the Bernoulli numbers.
Nov
3
revised How to prove Euler's formula: $e^{it}=\cos t +i\sin t$?
added 79 characters in body; added 1 characters in body
Nov
2
revised Positive integers $k = p_{1}^{r_{1}} \cdots p_{n}^{r_{n}} > 1$ satisfying $\sum_{i = 1}^{n} p_{i}^{-r_{i}} < 1$
deleted 16 characters in body
Nov
2
revised Sharp upper bounds for sums of the form $\sum_{p \mid k} \frac{1}{p+1}$
added 4 characters in body
Nov
2
awarded  Critic
Nov
2
awarded  Autobiographer
Nov
2
revised Positive integers $k = p_{1}^{r_{1}} \cdots p_{n}^{r_{n}} > 1$ satisfying $\sum_{i = 1}^{n} p_{i}^{-r_{i}} < 1$
added 12 characters in body
Nov
2
revised Positive integers $k = p_{1}^{r_{1}} \cdots p_{n}^{r_{n}} > 1$ satisfying $\sum_{i = 1}^{n} p_{i}^{-r_{i}} < 1$
deleted 2 characters in body; added 6 characters in body; deleted 5 characters in body
Nov
2
answered Sharp upper bounds for sums of the form $\sum_{p \mid k} \frac{1}{p+1}$
Nov
2
revised Positive integers $k = p_{1}^{r_{1}} \cdots p_{n}^{r_{n}} > 1$ satisfying $\sum_{i = 1}^{n} p_{i}^{-r_{i}} < 1$
added 25 characters in body; deleted 4 characters in body
Nov
2
awarded  Supporter
Nov
2
revised Upper bound for the quality of an $abc$-triple
edited tags; edited tags