USING: help.syntax help.markup ; IN: math.ranges ARTICLE: "ranges" "Ranges" "A " { $emphasis "range" } " is a virtual sequence with elements " "ranging from a to b by step." $nl "Creating ranges:" { $subsection } { $subsection [a,b] } { $subsection (a,b] } { $subsection [a,b) } { $subsection (a,b) } { $subsection [0,b] } { $subsection [1,b] } { $subsection [0,b) } ;