848 reputation
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location Munich
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visits member for 3 years
seen Jul 9 at 21:18

Oct
8
comment Function as parameter in Wolfram Mathematica
Is there any way, like in programming languages, to define an "anonymous function" (a.k.a. lambda-expression) the way i tried?
Oct
8
comment Function as parameter in Wolfram Mathematica
It does not work like expected! E.g. $E(f)(x)$ is now called TranslateEx. TranslateEx[fn_] := Apply[fn, {x + 1}] and then TranslateEx[x] leads to the result x[1 + x]. What does this mean? I expected x + 1 as the result. EDIT It seems i cannot enter a function directly and i need to specify it explicitly...
Oct
8
asked Function as parameter in Wolfram Mathematica
Oct
2
comment Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
@cardinal: My ranges are sometimes different. It might happen, that i want to pick a number out of [1;20] and sometimes out of [1;100]. Which technique is used to compute the most convenient standard deviation because there are many numbers left out if i use a wide interval and $a=\sigma=1$.
Oct
2
comment Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
@cardinal: I tried Box-Muller, however i was not able to shift the median like with Marsaglia! And if i think about the scenario: in the time i compute 1.000 uniform numbers i will need... 10 normal ones and i am confident, that i will be have with this :)
Oct
2
comment Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
@Gortaur: I have a solution - please have a look at my question which is edited now.
Oct
2
comment Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
@cardinal: Found the solution - look at my original question ;)
Oct
2
revised Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
found solution!
Oct
2
comment Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
@cardinal: I need this only 10 times at the beginning of the game and maybe in really special circumstances and therefore efficiency is not that important. ;)
Oct
2
comment Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
I must confess, that adding a scalar $a$ was my first idea, however my algorithm seems buggy and it doesn't work like expected. Furthermore, debugging my code revealed that i am getting sometimes numbers $\leq 0$ which is weird. Any suggestions what i can do?
Oct
2
revised Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
introduced algorithm
Oct
2
revised Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
added 32 characters in body
Oct
2
asked Transform uniform distribution to normal distribution using Lindeberg–Lévy CLT
Sep
17
comment Inductive proof for the Binomial Theorem for rising factorials
Interesting way of prooving this, however i have to do this via induction. Still thanks for sharing the idea.
Sep
16
accepted Inductive proof for the Binomial Theorem for rising factorials
Sep
16
asked Inductive proof for the Binomial Theorem for rising factorials
Aug
18
accepted How to transform/expand a simple sum to prove equality of two sets?
Aug
18
comment How to transform/expand a simple sum to prove equality of two sets?
Thanks for these hints. I will try now to check for equality on my own and i will try to understand the manufacturing of this explicit formula :-)
Aug
18
comment How to transform/expand a simple sum to prove equality of two sets?
Prooving this one should be not that difficult however it is not clear to me how to develop this term out of the sum of the powers of $-1$. That is the point - i would like to know how you have seen this!
Aug
18
revised How to transform/expand a simple sum to prove equality of two sets?
added 24 characters in body; edited title