Quote:
>? to s :x1 :x2 :x3 :x4
>> print :x1 :x2 :x3 :x4
>> end
Every Logo procedure has a fixed number of inputs that it accepts
by default. In the case of PRINT this is one input.
Some procedures, including PRINT, will accept a different number of
inputs, provided that the invocation is enclosed in parentheses:
(print :x1 :x2 :x3 :x4)
One source of information is the HELP command:
? help "print
PRINT thing
PR thing
(PRINT thing1 thing2 ...)
(PR thing1 thing2 ...)
command. Prints the input or inputs to the current write stream
(initially the terminal). All the inputs are printed on a single
line, separated by spaces, ending with a newline. If an input is a
list, square brackets are not printed around it, but brackets are
printed around sublists. Braces are always printed around arrays.