Hello,
I want calculate CDF for Poisson distribution.
Now how can calculate this series?
Thanks
You have already asked this question in your previous thread. If you want more than what has been posted in the replies there you should post in that thread asking for more help specifying what problems you are still having.
Or just look it up on Wikipedia
I also gave a reference. Also you said you wanted to generate Poisson distributed pseudo random numbers and you should not be using the CDF for that as it is not well suited in this case.
As an aside: the Knuth method uses the well know relationship between the Poisson and the Exponential distributions is an almost trivial manner (the number of arrivals in a fixed time interval where the inter-arrival times have an exponential distribution has a Poisson distribution).