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visits member for 2 years, 2 months
seen Oct 16 at 21:43

Aug
24
awarded  Yearling
Jul
28
asked Minimal number of points to define a rotated ellipse?
Jul
17
asked Removing parametrization from a system of equations
Jul
2
awarded  Curious
May
31
awarded  Popular Question
May
29
revised Fitting by an ellipsoid with a known center?
edited body
May
29
revised Fitting by an ellipsoid with a known center?
edited body
May
29
asked Fitting by an ellipsoid with a known center?
May
22
comment N points in a circle around a point on a sphere.
Can you detail the second part ? (Then, use a 3D rotation...)
May
22
asked N points in a circle around a point on a sphere.
May
14
asked Numerical evaluation of an infinite 3D sum of cosine?
May
9
comment Definite integral $\int_{R_0}^{R}\frac{dr}{r^2\sqrt{\frac{R_0-R_S}{R_0^3}-\frac{1}{r^2}\left(1-\frac{R_{s}}{r}\right)}}$
Redoing all the calculations, I have one last question : why $\wp^{-1}\left(\beta\right) = w_{1}+w_{2}$ ?
May
9
asked Validity of $\int_{a}^b f(z) dz = \int_{a}^{\infty} f(z) dz - \int_{b}^{\infty} f(z) dz$?
May
8
asked Expression of $2\int_{0}^{\frac{1}{r_{0}}}\frac{du}{\sqrt{\frac{r_{0}-r_{s}}{r_{0}^{3}}-u^{2}\left(1-u r_{s}\right)}}$ in terms of elliptic integrals
May
5
comment Definite integral $\int_{R_0}^{R}\frac{dr}{r^2\sqrt{\frac{R_0-R_S}{R_0^3}-\frac{1}{r^2}\left(1-\frac{R_{s}}{r}\right)}}$
See the related question: physics.stackexchange.com/questions/111272/… if you have any idea..
May
5
accepted Definite integral $\int_{R_0}^{R}\frac{dr}{r^2\sqrt{\frac{R_0-R_S}{R_0^3}-\frac{1}{r^2}\left(1-\frac{R_{s}}{r}\right)}}$
May
5
comment Definite integral $\int_{R_0}^{R}\frac{dr}{r^2\sqrt{\frac{R_0-R_S}{R_0^3}-\frac{1}{r^2}\left(1-\frac{R_{s}}{r}\right)}}$
I've finally implemented it in C++ and it works well ! Thanks !
May
4
accepted Fundamental period of the WeierstrassP elliptic function?
May
4
comment Fundamental period of the WeierstrassP elliptic function?
@achillehui Is it the complete or half period ?
May
4
comment Fundamental period of the WeierstrassP elliptic function?
But in that case $\lambda$ is negative as $e_1 > e_2 > e_3$ so I cannot compute the $K(k)$...