scanl/6

Availability::- use_module(library(apply)).(can be autoloaded)

Left scan of list. The scanl family of higher order list operations is defined by:

scanl(P, [X11,...,X1n], ..., [Xm1,...,Xmn], V0,
      [V0,V1,...,Vn]) :-
      P(X11, ..., Xm1, V0, V1),
      ...
      P(X1n, ..., Xmn, V', Vn).