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visits member for 2 years, 10 months
seen 8 hours ago

Jul
2
awarded  Curious
May
26
comment Statements with rare counter-examples
This rings a bell...duplicate?
May
16
accepted A product for 1/e?
May
13
comment A product for 1/e?
Do you think for $|F_i|< 1|$ we could also just say $\log(1 + (-F_i)) \approx -F_i,~$ ...etc.? And so $\sum (-F_i) \approx -1$ and exactly in the limit as n gets large?
May
12
comment A product for 1/e?
@Ian: Fair enough. I only have time to remove it at the moment. I think my computer was using a $\Gamma$ function or something to interpolate and I will have to go back and check.
May
12
revised A product for 1/e?
deleted 58 characters in body
May
12
asked A product for 1/e?
May
11
comment Grade School Math: Bad math, or new meanings?
@DavidMitra: A digit represents one of ten numbers. But if I stipulate that it the digit 1 also represents (say) 1000 by virtue of its place in a number that might be a contract if you understand and accept it. The problem with the question as I see it is that this is not at all clear.
May
11
comment Grade School Math: Bad math, or new meanings?
Right, I see both sides but it's not a good test question. Additionally, if the answer is (1), what does "1 times greater than..." mean?
May
1
comment sum of primes: approximate closed form?
If you had an approximate expression for the percentage of primes from 1 to n and multiplied it by n that would give you an approximate expression for the number of primes from 1 to n...
Apr
24
comment Pseudo Proofs that are intuitively reasonable
@robjohn: It is talking about the same function, yes, and I think my argument is overstated.
Apr
24
comment Pseudo Proofs that are intuitively reasonable
@robjohn: I think my answer is essentially a duplicate of yours. If you agree I will take mine down in the interest of good site husbandry. I didn't see this at the time.
Apr
22
comment Pseudo Proofs that are intuitively reasonable
@robjohn: The idea was paraphrased from an unnamed source in the text I cited. I will look at your answer (time permitting) and edit mine if that seems indicated. The answer was not given with reference to yours and I don't doubt your assertion is correct. Thanks.
Apr
18
comment Estimating the integrated Tchebychev function and calculating its error
@AndrewKelley: thanks, will look at this.
Apr
4
revised Proving inequality $\frac{a}{\sqrt{a+2b}}+\frac{b}{\sqrt{b+2c}}+\frac{c}{\sqrt{c+2a}}\lt \sqrt{\frac{3}{2}}$
edited body
Apr
4
revised Proving inequality $\frac{a}{\sqrt{a+2b}}+\frac{b}{\sqrt{b+2c}}+\frac{c}{\sqrt{c+2a}}\lt \sqrt{\frac{3}{2}}$
added 385 characters in body
Apr
2
revised Proving inequality $\frac{a}{\sqrt{a+2b}}+\frac{b}{\sqrt{b+2c}}+\frac{c}{\sqrt{c+2a}}\lt \sqrt{\frac{3}{2}}$
added 132 characters in body
Mar
14
comment How much percentage are the Pythagorean triples among numbers?
Discussion of this point at p. 38 of Lehmer's paper.
Mar
14
revised How much percentage are the Pythagorean triples among numbers?
deleted 17 characters in body
Mar
9
accepted Elementary lemma about a rational sequence