Set functions with multiple inputs

Have you ever tried to find the common elements/rows to more than two sets without using a loop?

Now you can with multiple-input set functions: Intersectm, ismemberm, setdiffm, setxorm, unionm.

Brief syntax example:
- intersectm(a,b,c,d,....)
- intersectm(a,b,c,d,...,'rows')

These functions are substantially wrappers of ismember/ismemberm (like the original two-input ones with the exception of ismember).

For details see help.
For examples see the attached documentation.

Comments/suggestions/error reports are welcome.
p11v2