7,148 reputation
21145
bio website
location Besançon, France
age 34
visits member for 2 years
seen 3 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


17h
revised Can a $3\times3$ matrix have more than $3$ linear independent eigenvectors?
added 10 characters in body; edited title
1d
revised Compute direction of a cylinder by using 10 coefficients
edited tags
1d
revised Prove that $gcd(a, b) = gcd(b, a-b)$
retagging the question
1d
revised Continuous map $f : \mathbb{R}^2\rightarrow \mathbb{R}$
added 175 characters in body
1d
revised Normal distribution and conditional probability in $\Bbb R$
edited title
2d
revised Integrating $x\cdot{\cosh(x^2)}$
added 9 characters in body; edited title
Oct
22
revised How do I prove $[G:H\cap K]\leq [G:H][G:K]$?
edited title
Oct
21
revised Limit as x goes to infinity of this problem?
improve formatting
Oct
21
revised Find the area bounded by $x+y=3$ and the coordinate axes.
edited tags
Oct
20
revised Using the squeeze principle to evaluate the following limit
just to make it more clear ($x$ is already used)
Oct
19
revised Using $x=\tan \theta$ to solve $\int x\sqrt{1+x^2}\,\mathrm dx$
deleted 43 characters in body; edited title
Oct
17
revised Irrationality of reciprocal Fibonacci constant
edited title
Oct
17
revised Simplify the algebraic expression
missing symbol
Oct
16
revised Difference table for interpolation
edited tags
Oct
9
revised Finding mean from remaining value
Minor editing
Sep
30
revised What is the probability that a random 6-digit number will have at least one 0, at least one 1, and at least one 2?
edited tags
Sep
27
revised Abstract algebra book suggestion
added 1 character in body
Sep
27
revised Textbook for Partial Differential Equations with a viewpoint towards Geometry.
edited tags
Sep
26
revised Trigonometric curiosity
added 11 characters in body
Sep
25
revised Find infinite collection of open sets in $\Bbb R$ whose intersection is open and nonempty
edited title