9,381 reputation
22146
bio website gottwurfelt.wordpress.com
location Atlanta, GA
age 30
visits member for 4 years, 4 months
seen 15 hours ago

Data scientist and math blogger.


Nov
24
comment Will it become impossible to learn math?
I don't know this book, but I am intrigued. I think this may shed some light on the original question: there could be an upper limit on the depth of possible research imposed by the human lifespan.
Nov
24
answered Examples of Mathematics in Court
Nov
21
revised How are we able to calculate specific numbers in the Fibonacci Sequence?
formatting
Nov
20
answered Analytic Combinatorics to asymptotically estimate the number of objects of size at most n?
Nov
19
comment Numerical value of $\sum_{p \in \mathcal P} \frac1{p\ln p}$
Your difference should be $1/(2 \log 2)$, not $1/2$.
Nov
19
comment How to draw greek letters on paper / blackboard?
I have seen $\phi$ and $\varphi$ used by the same lecturer in the same lecture (in physical chemistry). One was pronounced "fee" and the other "fie". I found this lecture essentially impossible to follow because I thought of those two glyphs as interchangeable.
Nov
19
comment Prove that $\sum_{n=0}^{\infty }\frac{(2n+1)!!}{(n+1)!}2^{-(2n+4)}=\frac{3-2\sqrt{2}}{4}$
Yes - that numerical value corresponds to your analytical value.
Nov
19
comment Prove that $\sum_{n=0}^{\infty }\frac{(2n+1)!!}{(n+1)!}2^{-(2n+4)}=\frac{3-2\sqrt{2}}{4}$
As a check on this value, when the sum is computed numerically one gets 0.1035533906.
Nov
17
answered How can I solve $m^2+n^2=5077$
Nov
17
comment Characteristics of odd parts in a partion
Guessing this is a homework question, so I'll give a hint. Have you seen a proof that the number of partitions with only odd parts is the same as the number of distinct parts, using generating functions? You can adapt that proof to this problem.
Nov
15
reviewed Close Combinatorial card game
Nov
13
answered Number of ways to select non-adjacent squares from a rectangular grid?
Nov
13
reviewed Approve suggested edit on pell-type-equations tag wiki excerpt
Nov
10
awarded  Nice Answer
Nov
9
answered Product of differences of permutation in circle
Nov
9
answered Easy Question about Computing the probability of properties of random subsets
Nov
7
answered What is the average of rolling two dice and only taking the value of the higher dice roll?
Nov
1
comment How do calculators evaluate inverse trig functions?
I do like it. The question to me seems to be whether one wants the more conceptual (yours) or calculational approach; yesterday calculation felt worthwhile to me, but in the light of morning I can see how the more conceptual approach is superior.
Oct
31
comment How do calculators evaluate inverse trig functions?
God plays dice is my blog. The commenter "logosintegralis" there took a stab at using Pade approximants to derive that approximation.
Oct
29
comment Expected number of turns for a rook to move to top right-most corner?
The fact that the move is to move to a random square in the same column or row - i. e. change one coordinate uniformly at random - explains why G7 is no closer to H8 than A1 is.