I wanted very much to make it possible ...destroy the portuguese....give me a help !

what's the eliptic curve ...this basicly

EasyFit – Distribution Fitting Made Easy EasyFit helps you deal with uncertainty and make informed decisions by analyzing your probability data and selecting the best fitting distribution. EasyFit allows to easily fit a large number of distributions to your data in seconds

http://www.mathwave.com/

and what do we need....

How To Use The Inverse Transform Method

In theory, the inverse transform method is very easy to use: to generate a random number from any probability distribution with cumulative distribution function F(x), you need to take the following steps: 

http://www.mathwave.com/articles/random-numbers-excel-worksheets-p2.html