Select - reduces an array to elements which fulfill a criterion
array proc Select -> array
[4 -2 0.3 -1.7 -3 0 7] {0 lt} Select -> [-2 -1.7 -3]
[4 -2 0.3 -1.7 -3 0 7] {0 gt} Select -> [ 4 0.3 7]
Mathematica compatible
Diesmann
9.2.01
/var/www/debian/nest/nest-simulator-2.20.0/lib/sli/mathematica.sli