[Gretl-users] Norm of gradient in mle command

In an mle command with numerical derivatives I get in the script output (actual example) << Gradients:        2.4007      6.7772     -5.3557    -0.89559 (norm 1.96e+000) Can somebody please advise  which norm is this, preferably giving also its computation formula? Thanks. -- Alecos Papadopoulos PhD Affiliate Researcher Dpt of Economics, Athens University of Economics and Business Foundation for Economic and Industrial Research (IOBE) web: alecospapadopoulos.wordpress.com/ ORCID:0000-0003-2441-4550