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visits member for 2 years, 8 months
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May
14
awarded  Caucus
May
8
comment A “simple” 3rd grade problem…or is it?
I'd argue it would take at least another four hours.
May
7
comment A “simple” 3rd grade problem…or is it?
And yet it only takes ten poles if you build the fence around something.
Mar
21
comment Is there such a thing as proof by example (not counter example)
Obligatory xkcd.
Nov
24
comment Adding imaginary number to exponential of Euler Gamma function
I did check. It's not empty, but I'm still figuring out when it will and will not converge.
Nov
24
comment Adding imaginary number to exponential of Euler Gamma function
It diverges for every real number n, but not necessarily for complex numbers.
Oct
30
comment How can I quantify the amount of space required to store all possible 128kilobit mp3s?
Very crudely: 2^2,840,000 = (2^4)^(2,840,000/4) = 16^710,000 > 10^710,000 > 10^80.
Oct
10
awarded  Editor
Oct
10
revised How to obtain an approximate expression for $\sqrt{\varepsilon}$ where $\varepsilon \ll 1$?
Added plot
Oct
10
answered How to obtain an approximate expression for $\sqrt{\varepsilon}$ where $\varepsilon \ll 1$?
Oct
10
comment Integral One-to-one functions in 3 dimensions
Note however, AlbertH's solution provides a unique integer for every unique tuple. To ensure the same for a function mapping to integers in the range of one to n requires knowledge of all tuples that are yet to be mapped.
Sep
19
comment Why is the probability of having 2 boys 7/15?
Probability of having two boys (1/4), multiplied by the probability of having at least one of them born in spring. That's $\frac{3}{16} + \frac{3}{16} + \frac{1}{16}$, or alternatively: $1-(\frac{3}{4})^2$.
Sep
18
comment Why is the probability of having 2 boys 7/15?
Err... 7/15 > 1/3
Sep
18
awarded  Teacher
Sep
18
answered Why is the probability of having 2 boys 7/15?
Apr
14
awarded  Supporter