39 reputation
4
bio website
location Louvain-la-Neuve, Belgium
age
visits member for 2 years, 6 months
seen Jun 6 at 6:30

Jul
2
awarded  Curious
Jun
6
accepted Solve a special differential equation
Jun
5
asked Solve a special differential equation
Jun
11
awarded  Supporter
Jun
11
comment Vector analysis: $(\vec v \cdot \vec \nabla) \vec v=(\vec \nabla \cdot \vec v) \vec v$?
Oh yes, I was a bit confused sorry. Now I understand, thank you for your answer.
Jun
11
accepted Vector analysis: $(\vec v \cdot \vec \nabla) \vec v=(\vec \nabla \cdot \vec v) \vec v$?
Jun
11
comment Vector analysis: $(\vec v \cdot \vec \nabla) \vec v=(\vec \nabla \cdot \vec v) \vec v$?
But $v \cdot \nabla = \nabla \cdot v$ in general, right ? This is what troubles me.
Jun
11
asked Vector analysis: $(\vec v \cdot \vec \nabla) \vec v=(\vec \nabla \cdot \vec v) \vec v$?
Aug
24
accepted Evaluation of $\int_0^{2\pi} \frac{1}{1+3\cos^2(\theta)} \, d\theta$
Aug
23
comment Evaluation of $\int_0^{2\pi} \frac{1}{1+3\cos^2(\theta)} \, d\theta$
should I erase the question ?
Aug
23
comment Evaluation of $\int_0^{2\pi} \frac{1}{1+3\cos^2(\theta)} \, d\theta$
@did: you're right, thanks and.. damn!
Aug
23
asked Evaluation of $\int_0^{2\pi} \frac{1}{1+3\cos^2(\theta)} \, d\theta$
Aug
19
asked Solving an ODE with parametrized variables
Aug
13
awarded  Scholar
Aug
13
accepted Determine characteristics for the method of characteristics
Aug
12
comment Determine characteristics for the method of characteristics
Thanks for the explanation about the method but I still don't understand how to solve the separable ODE with the parameter $s$ (or $t$ as you used) as my professor did (though I have no problem to solve the equation without it). Why does he put $[s,x]$ and $[x,y]$ as domains of integration ? I guess I am mindblocking but could you just show me the steps ?
Aug
12
awarded  Student
Aug
12
asked Determine characteristics for the method of characteristics