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Apr
28
comment Find the probability of the following event
This, with slightly different numbers, is Kahneman and Tversky's taxicab problem: en.wikipedia.org/wiki/…
Apr
27
answered Algebraic simplification of likelihood ratio
Apr
17
answered How to evaluate $\log x$ to high precision “by hand”
Apr
10
comment Compute $\sqrt[7]{0.999}$ to three decimal places.(From Gelfand's Algebra text.)
I don't agree with your assumption; my assumption is that Gelfand was looking for a smarter answer like mine, given that the numbers involved are so close to 1. (If he'd asked, say, to compute the cube root of 3.257, then I'd expect that he was looking for the long-multiplication answer.) But I can't prove this.
Apr
8
answered Compute $\sqrt[7]{0.999}$ to three decimal places.(From Gelfand's Algebra text.)
Mar
12
answered $X,Y,Z$ are i.i.d $U(0,1)$. What is $P(X+Y+Z > 1)$?
Mar
10
awarded  Nice Answer
Feb
25
answered Intersection of 8 spheres: find the volume
Feb
24
comment Is $\int_0^\infty x^{a-1} (1-x)^{b-1} e^{t-cx} dx$ integrable?
Thanks! I hadn't realized that your context was a beta distribution, and this was the first thing that came to mind.
Feb
24
answered Is $\int_0^\infty x^{a-1} (1-x)^{b-1} e^{t-cx} dx$ integrable?
Feb
11
answered Find all perfect squares of the form aaa…a (n digits) bbb…b (n digits)
Jan
30
awarded  Tag Editor
Jan
30
revised quadratics wiki excerpt
$c$ was used twice in the last form; presumably it wasn't intended to force those to be equal.
Jan
30
comment Explain why catastrophic cancellation happens
I'm seeing the same thing in R. This supports the idea that this is an issue with floating-point numbers.
Jan
30
suggested approved edit on quadratics tag wiki excerpt
Jan
30
awarded  Nice Answer
Jan
29
comment Why is Multiplicative Notation Used for Groups (Instead of Additive)?
I'm not sure I'd call this "multiplicative" notation - we don't explicitly write out the multiplication sign. I think that this is a case of juxtaposition having two meanings, multiplication (when used for numeric variables) and an arbitrary group operation.
Jan
28
reviewed Close $ \exists c \in( a, b) \text{ such that } f(c)=\max\limits_{x \in [a, b]} f (x) $
Jan
27
answered Value of lambda in poisson distribution
Jan
27
answered What is the coefficient of $(z-\pi)^2$ in Taylor series expansion of $\sin (z)/ (z-\pi)$