samer@12: function h=plus(f,g)
samer@12: % plus - Constructs parallel composition of two functions
samer@12: %
samer@12: % plus :: (A1->B1), (A2->B2) -> (A1,A2->B1,B2).
samer@12: 	h=@(x,y)deal(f(x),g(y));
samer@12: end