eq op added
recursion added
max fact: 12 =(
print object function added
minor changes
partialy fix bug without \\n in end
list command
elem as [] added; improving sample 13
minor changes
minor changes and recur test
minor fixes and slices
minor fixes and slices
minor changes in sample
cons implemented
length added
tail and head added
init and last added
foldl sum and product
map added