About gretl
Gretl is an acronym for Gnu Regression, Econometrics and Time-series Library*.
Gretl is a free statistics and econometrics program with a domain-specific scripting and matrix-oriented language called hansl.
Hansl is an acronym for Hansl is A Neat Scripting Language.
Detailed (and technical!) information about gretl can be found on the official website.
The core of the gretl team consists of Allin Cottrell and Riccardo “Jack” Lucchetti.