Most of us have heard of the quadratic formula x = ( -b +or- %: (b^2 - 4ac) )/2a (roughly standard math notation)
for solving ax^2 + bx + c = 0 for x . Your mission, should you decide to accept it, is to write a verb quad that takes vector a,b,c as argument, says “Not quadratic” if a is 0 , and otherwise uses the quadratic formula to find the values of x, reporting them in a vector. quad 2 _8 6 3 1 quad 0 _8 6 Not quadratic --Kip Murray -- Sent from Gmail Mobile ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
