(examples-for mapsum

("maps a function over a list and sums the result"
 (mapsum car '((2 3) (5 7) (11 13)))
 18)

("extracts an attribute and sums the result"
 (mapsum &age (list { name "a" age 10 }
                    { name "b" age  7 }
                    { name "c" age 12 }))
 29))

(examples-for mapply

("applies each list to the given function"
 (mapply + '((1 2 3) (4 5 6) (7 8 9)))
 (6 15 24)))