def fact(n) =+− (if n == 0 then 1 else n * fact(n - 1));+− +− def facT(n, acc) =+− if n == 0 then acc else facT(n - 1, n * acc);+− +− def facTi(n) = facT(n, 1);+− +− //fact(10)+− //facTi(10)+− +− write(facTi(6))+− +− // a simple factorial program+− // (including a tail recursive version)+−