% hw03cdd.m  -  Derivative for fcn of M604 HW0c C(a)
%
% Input parameter xy must be a column vector with two components.
% Output is a row vector of length 2.

function z = hw03cdd(xy)

z = zeros(1,2);

x = xy(1);
y = xy(2);

z = [2*x, 18*y];
