looking for a random # generator

I'm looking for a random number generator that can gives me random numbers in Possion dist'n. Can any one give a recomdation?
thanks.

Code:

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#include <time.h>
#include <stdio.h>
#define MAX 100

int main()
{
int x;
srand((unsigned)time());
x=rand()%MAX;
printf("The random number is %d",x);
return 0;
}

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Quote:

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Originally posted by w/ possion?
I'm looking for a random number generator that can gives me random numbers in Possion dist'n. Can any one give a recomdation?
thanks.

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Have a look at the book Seminumerical Algorithms by Knuth.
If you want to generate poisson with mean m_u note :
If U(1)....U(n)... are i.i.d uniform on [0,1]
and m is the smallest integer such that
U(1)*........U(m)<= exp(-m_u)
then m-1 is poisson.

Quote:

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Originally posted by _Cl0wn_

Code:

---

#include <time.h>
#include <stdio.h>
#define MAX 100

int main()
{
int x;
srand((unsigned)time());
x=rand()%MAX;
printf("The random number is %d",x);
return 0;
}

---

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Doesn't generate from poisson.

Quote:

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I'm looking for a random number generator that can gives me random numbers in Possion dist'n. Can any one give a recomdation?
thanks.

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eh? What is possion dist'n?