7,950 reputation
31147
bio website insee.fr/en
location Besançon, France
age 34
visits member for 2 years, 2 months
seen 11 hours ago

Statistician, also interested in numerical methods and combinatorics, and labour economics.

Regarding computer programming, I use mainly SAS and a combination of Excel, VBA and Fortran. For some tasks on text files I use also Python.

Contact: arbautjc@gmail.com


11h
reviewed Leave Closed Eigenvalues of a nilpotent matrix can only be $0$
11h
reviewed Close Which of these arguments is wrong?
11h
reviewed Leave Open $3$ dimensional light up cube ornament, difficult probability problem
11h
reviewed Close Limit definition applications
11h
reviewed Leave Open iid sums of zero mean rv drops below zero almost surely
11h
reviewed Leave Open A proof about martingales and variance
11h
reviewed Close Can we specify all row equivalent matrices of a given matrix?
11h
reviewed Leave Open How find this value $d+\frac{\sqrt{3}b}{a}$ if such $a^2+2ac-2ac^3-2a^2c^2=bcd+\sqrt{3}acd$
11h
reviewed Close Prove $\sqrt{5}$ is both irrational and algebraic.
11h
reviewed Close Evaluate $\int {x+3\over x^2+6x+10}dx$
20h
reviewed Close combination and permutation SETS
20h
reviewed Approve How to prove $\sum_{n=1}^{\infty}\frac{1}{16n^2-16n+3}=\frac{\pi}{8}$
20h
reviewed Leave Open Need help with holomorphic functions on a domain interval removed.
20h
reviewed Close Application of Ring theory
20h
comment Taylor expansion of the Error function
What's the Taylor expansion of $e^t$? Of $e^{-t^2}$? Of $\int e^{-t^2} dt$?
21h
reviewed No Action Needed Create a map of connected nodes from a list of edges in $O(n^2)$
21h
reviewed Close Prove that ${\frac{d}{{dt}}_{t = 0}}(\det ({e^{tX}})) = Tr(X)?$
21h
reviewed Close Can this be rewritten as the following?
21h
reviewed Leave Open How to prove this, a sin(B-C) + b sin (C-A) + c sin (A-B) = 0
2d
revised Remainder of $\ln x$ converges to $0$
edited body