Here's an implementation of horner's algorithm (with the appropriate intermediate results, regardless of the implementation of #.)
horner=: +`*/@|.@}.@,@,. Example use: 13 horner 2 _3 1 300 In other words, in this example we are computing: 1+13*_3+13*2 or, with redundant parenthesis included: 1+(13*(_3+(13*2))) FYI, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
