// This is a set of rex
definitions, with comments
// x is a list of some
small random numbers.
x = [3, 9, 1, 2, 8, 7, 5,
6, 4];
// y is a list of some
grains.
y =
sort(["oats", "peas", "beans",
"barley"]);
// z is a list of
pairs
z = [ [1, 2], [3, 4], [5,
6] ];
/*
Above you see comments to end-of-line.
You can also have multi-line comments such as this
one,
just like Java or C++.
*/