honton (06/24/82)
I recieved quite a few answers to my apl quiz. Here are
some of the answers. The overwhelming reply was something
of the form:
(iota 0) rho vector
(I was quite pleased to see that the null vector was
produced in a variety of ways; (iota 0), '' ,(0 rho 0).
The generalization of the previous answer is:
((1 ne rho vector)/ rho vector) rho vector
Of course, as some of you pointed out, the structure
of the result can be radically different.
Other ways for the specialized case were:
vector[1]
1 take vector
Thanks one and all who answered.
chas (decvax!cwruecmp!honton)