15,952 reputation
13786
bio website linkedin.com/in/crntaylor
location London, United Kingdom
age 31
visits member for 4 years
seen Dec 17 at 11:43

I'm broadly interested in very applied math. I try to apply ideas from mathematics, statistics, machine learning, formal systems and computer science to solve real-world problems. Mostly in applied finance/quantitative trading, but in other areas if the mood takes me.


The following is for my own use, but feel free to borrow it -

Hi. It looks like you are new here. We are generally very willing to help, but we like users to show the work that they've done towards solving the problem on their own first. If you can edit your question to show the code you've written so far, and where you are stuck, then you will get a much better response.


Jun
17
revised Calculate area under a curve
added 32 characters in body
Jun
17
comment I was wondering what is the simplest yet difficult mathematical question?
This is a pretty subjective question, so may not be very well suited to this site. However, I'd suggest that Goldbach's conjecture (that every even integer greater than 2 is the sum of two primes) is a strong candidate for 'simplest difficult problem'. It's not normally expressed as an equation, though you could do that if you wanted to.
Jun
17
awarded  Enlightened
Jun
17
revised Show that $f(x+y)=f(x)+f(y)$ implies $f$ continuous $\Leftrightarrow$ $f$ measurable
better title, improved formatting; edited title
Jun
17
answered Calculate area under a curve
Jun
16
awarded  Mortarboard
Jun
16
answered What is a “hierarchical random graph”?
Jun
16
awarded  Nice Answer
Jun
16
answered Why isn't $ SA_{\text{cube}} = 3x^2 $?
Jun
16
revised How to normalize a set of real numbers?
added 22 characters in body
Jun
16
answered How to normalize a set of real numbers?
Jun
16
comment Combinatorics Question
$n$ is the number of symbols (a, b, c, ...) and $y$ is the maximum word length you are considering. So for symbols (a,b) and words of length two or less, you have $n=2$ and $y=2$. Here $i$ is a dummy variable used for the summation.
Jun
16
revised Combinatorics Question
deleted 9 characters in body
Jun
16
comment Tribonacci sequence modulo X
Yes, that is correct.
Jun
16
comment Tribonacci sequence modulo X
Interestingly (in the sense that I wouldn't have guessed this) it appears that $\varphi(m)$, the worst-case run time to calculate the period of the Tribonacci sequence mod $k$ for $k<m$, scales like $\varphi(m)\sim m^2$, rather than $m^3$. Bonus points for an explanation of why this is :)
Jun
16
comment Tribonacci sequence modulo X
You're right, thanks. I edited the algorithm to make it correct (which has the unfortunate side effect that the comments no longer make sense - sorry about that.)
Jun
16
revised Tribonacci sequence modulo X
deleted 92 characters in body; deleted 2 characters in body; edited body
Jun
16
answered Tribonacci sequence modulo X
Jun
16
revised Tribonacci sequence modulo X
added 3 characters in body; edited title; added 9 characters in body
Jun
15
revised Probability of market movement / Trends
added 4 characters in body; added 12 characters in body