Logo lets you leave out parentheses most of the time, except to use rest arguments or force grouping. For example: ? print list sum 0 1 2 1 2 That exp

Logo lets you leave out parentheses most of the time, except to use rest arguments or force grouping. For example: ? print list sum 0 1 2 1 2 That expression parses as (print (list (sum 0 1) 2)) because both list and sum normally take 2 arguments. However, using the parenthesised function call syntax, you can pass them however many you like: ? (print (list 1 2 3 (sum 1 1 1 1))) 1 2 3 4 Or you can of course mix and match (probably to better effect than this example): ? print (list 1 2 sum 1 2 4) 1 2 3 4 Logo also lets you use infix arithmetic operators with normal precedence: ? print 1 + 2 * 3 + 4 11