- (prod VAR ([N1 [N2 [STEP]]]) BODY...) -> numbersyntax
Product of BODY... in N1 to N2, inclusive, by STEP. When N1 > N2 the STEP becomes negative.
- VAR
- symbol ; VAR bound to current N in BODY...
- BODY...
- number ;
- N1
- number ; range start
- N2
- number ; range end
- STEP
- number ; step size, positive, default 1