6,275 reputation
11041
bio website
location Besançon, France
age 34
visits member for 1 year, 11 months
seen 12 mins ago

Mathematics is a hobby for me, and MSE helps me not to forget too much what I learned in university (MS in applied mathematics at Lyon 1). I like especially real and complex analysis, trigonometry, numerical analysis, finite groups theory, number theory and combinatorics. I am not allergic to other fields.

Contact: arbautjc at gmail dot com


40m
reviewed Close Proof $B-B^T$ is Skew Symmetric
41m
reviewed Close How to calculate the linear approximation?
41m
reviewed Close What does it really mean when we say that the probability of something is zero?
42m
reviewed Reject suggested edit on Comparing the size of square roots
1h
reviewed Leave Open What type of distribution can be used to describe a game with positive expected winnings?
1h
reviewed Close I don't understand how to answer the following question, can someone help please?
1h
reviewed Reject suggested edit on Locus of a point?
1h
reviewed Reject suggested edit on What is $\frac{2x}{1-x^2}$ when $x=\sqrt{\frac{1-\cos\theta}{1+\cos\theta}}$?
18h
reviewed Reviewed Rearranging $\sqrt{x^2+1}+x$
18h
reviewed Close Factor and simply using fractions and negative exponents
18h
reviewed Close Prove $\sigma(n)> n+\sqrt n $
18h
reviewed Close advertising model
18h
reviewed Approve suggested edit on A question about quadratic polynomials with complex roots.
18h
reviewed Reject suggested edit on Why exactly does the distributive property work?
20h
reviewed Reviewed What is the difference of doing principal component analysis if I transpose the nxm original matrix?
20h
reviewed Reviewed Can a function be applied to itself?
20h
reviewed Looks OK Sequence and Limit
20h
reviewed Close Probability: A dice is thrown six times.
20h
reviewed Close Linear spam of union
20h
reviewed Close Summation of Combination