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seen Dec 6 '13 at 11:40

Feb
24
awarded  Enthusiast
Feb
16
accepted Sum of Multinomial Coefficients
Feb
15
comment Sum of Multinomial Coefficients
No unfortunately not. Its my job to do de computation and provide numerical examples. The only "external" information is that i am given the number $m$ and that $L\subseteq \{1,...,n\}$.I think I'll need to think it through once more, maybe I'll understand what's meant then.
Feb
15
comment Sum of Multinomial Coefficients
I does not make sense to me either, until now I haven't seen such an expression. These sum is an input into another function. I wrote down exactly how it is formulated in the paper. I'm sorry
Feb
15
revised Sum of Multinomial Coefficients
added 45 characters in body
Feb
15
comment Sum of Multinomial Coefficients
Thank you. But it's actually more complicated. I'm still not 100% sure if i got how one calculates the sum. I updated my question. I think it means that if $L=(1,2,4,5)$ that the third element can be zero. I'm sorry I haven't seen such a notation.
Feb
15
revised Sum of Multinomial Coefficients
added 16 characters in body
Feb
15
comment Sum of Multinomial Coefficients
thank you, I also do need a variation of that. Do you have an idea how to get only that coefficients where $k_i$ is not 0. In your example above it would be just the last term $\binom{5}{1\ 1\ 1\ 2}$?
Feb
14
awarded  Commentator
Feb
14
comment Sum of Multinomial Coefficients
I'm so sorry I didnt saw that you wrote an answer! I wouldnt have deleted the question. I figured out the same solution as you posted myself. Anyway I'll keep the question! I apologize once more!
Feb
14
asked Sum of Multinomial Coefficients
Feb
12
comment Speed up Numerical Integration
thank you all very much, I figured out how i could optimize my integration, but i have one last point. I have to Integrations the first I need to use "normal" Integrate and in the second one NIntegrate. I can't use NIntegrate in the first because there are still variables in the output . Is it possible to speed that further up? I have no assumptions to make to the function.
Feb
12
comment Get unique values for integration limits
Thanks, but I also need to remove the unnecessary sublists of x1,x2,x3. I just want the first sublist for x1, second one for x2,...
Feb
12
asked Get unique values for integration limits
Feb
10
comment Finding an index with certain conditions
Thanks, I figured out how to do it with your first solution!
Feb
10
accepted Finding an index with certain conditions
Feb
10
comment Finding an index with certain conditions
mho, no actually it should be i=5, because if i=6 i would get t_(n-i-1)=t_(-1)which would make no sense,ishould be lower than n.
Feb
10
revised Finding an index with certain conditions
edited body
Feb
10
revised Finding an index with certain conditions
deleted 3 characters in body
Feb
10
comment Finding an index with certain conditions
It's difficult for me to explain it properly but i try my best: if n-(i+1)=0 we have t_0which does not exist so we set it to Infinity. Basically I did a coordination transformation and need to find the index (time) in the new system between which tis my c is.