From Rosetta Code

Fan of array languages and real functional languages - such as J. Also a fan of conventional functional languages over imperative ones.

My Favorite Languages
Language Proficiency
C sharp Very active
F Sharp Active - Prefer it to C#
Python Somewhat active - Favourite dynamic language
C++ Inactive
R Inactive - prefer J
MATLAB Inactive - prefer J
C++ Inactive
Java Inactive
JavaScript Inactive
J Inactive - but love it
APL Inactive - Loved it but now prefer J
Visual Basic Inactive - Pointless now we have C#
Delphi Inactive - preferred it to VB6
Pascal Inactive
Lisp Inactive - at university
Prolog Inactive - at university
C Inactive - My first proper language