Actuary, finance and risk oriented, musician, programmer...
I enjoy mathematics, probability, statistics, numerical methods... and whatever challenges the creativity of human mind.
Just for information, I've found an article that I think it's important before asking something here (or anywhere else): http://mattgemmell.com/2008/12/08/what-have-you-tried/
Spanish Language & Usage
Q&A for students, teachers, and linguists wanting to discuss the finer points of the Spanish language
Area 51
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Mathematics
Q&A for people studying math at any level and professionals in related fields
Ask Different
Q&A for power users of Apple hardware and software
English Language Learners
Q&A for speakers of other languages learning English
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Meta Stack Overflow
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Seasoned Advice
Q&A for professional and amateur chefs
Database Administrators
Q&A for database professionals who wish to improve their database skills and learn from others in the community
TeX - LaTeX
Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Server Fault
Q&A for professional system and network administrators
Cross Validated
Q&A for statisticians, data analysts, data miners and data visualization experts
Programmers
Q&A for professional programmers interested in conceptual questions about software development
Musical Practice & Performance
Q&A for musicians, students, and enthusiasts
The Workplace
Q&A for members of the workforce navigating the professional setting
Quantitative Finance
Q&A for finance professionals and academics