Apopuli.132 net.lang.apl utzoo!decvax!ucbvax!G:shallit Fri Apr 9 14:45:42 1982 Re: An APL quiz question The problem (changing a vector to a matrix with rows as separate words) is well-known. One solution appears in "APL: An Interactive Approach" by Gilman & Rose. Still another appears in APL News, V. 2 No. 1 (1977) in the APL Play column. I would be glad to mail copies of these functions to interested parties (by U. S. Mail, that is). /Jeff Shallit, Department of Mathematics, UC Berkeley, Berkeley, CA 94720