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seen Jan 17 at 14:27

Jun
3
awarded  Supporter
Jun
3
comment Newbie: determine if line *segment* intersects circle
Good ! Mark this answer as solution. You can also add your final code, if you want to help someone with the same issue. And try to learn basic vectorial math ;)
Jun
1
revised Every continuous function $f: \mathbb{R} \to \mathbb{R}$ is uniformly continuous on every bounded set.
added 9 characters in body
Jun
1
answered Every continuous function $f: \mathbb{R} \to \mathbb{R}$ is uniformly continuous on every bounded set.
May
31
awarded  Teacher
May
31
answered Convergence in distribution and taking sqrt of random variables
May
31
comment What if the cauchy product of two series in $\mathbf{Z}$ is null
It is not possible to do that, the sum $c_n=\sum_{i \in\mathbf Z}{a_i b_{n-1}}$ are on an infinite number of items.
May
31
comment Newbie: determine if line *segment* intersects circle
My mistake, there were a typo in the formula for alpha. By the way, you should use a pastebin or gist.github.com and keep you question clean.
May
31
revised Newbie: determine if line *segment* intersects circle
wrong formula for alpha
May
31
comment What if the cauchy product of two series in $\mathbf{Z}$ is null
The last term is of course c_1 = 0 + \sum_{i \neq -1,1}{\frac{1}{(2i+1)(2i-1)}\frac{1}{-\pi}}\neq 0. Too late to edit.
May
31
comment What if the cauchy product of two series in $\mathbf{Z}$ is null
I am not sure to understand. $c_0 = \sum_j{a_j b_{-j}} = 1/4 + \sum_{j \neq 0}{\frac{1}{-(2j+1)^2}\frac{1}{-\pi}} = 0$, but $c_1 = 0 + \sum_{i \neq -1,1}{\frac{1}{(i+1)(i-1)}\frac{1}{-\pi}}\neq 0$.
May
31
comment Newbie: determine if line *segment* intersects circle
Yes $|MC|$ is the distance between M and C. It is also commonly writen just $MC$. R is the radius of the circle. R$ is a mispelling ;)
May
31
revised Newbie: determine if line *segment* intersects circle
added 206 characters in body
May
31
answered Newbie: determine if line *segment* intersects circle
May
31
revised What if the cauchy product of two series in $\mathbf{Z}$ is null
deleted 5 characters in body
May
31
comment What if the cauchy product of two series in $\mathbf{Z}$ is null
It is a good idea, but $\sum{\left|a_i b_{n-i}\right|}$ does not converge.
May
31
awarded  Editor
May
31
revised What if the cauchy product of two series in $\mathbf{Z}$ is null
added 29 characters in body
May
31
comment What if the cauchy product of two series in $\mathbf{Z}$ is null
I supposed implicitely that $\forall n, \sum_{i\in\mathbf{Z}}{\left|a_ib_{n-i}\right|}$ is defined. I add it to the question.
May
31
awarded  Student