%
%   fun1.m  function to evaluate f = exp(at)*sin(wt)
%
%   a and w are scalars, t can be a vector, and f is the same size as t
%
%   Prepared by J.R White, UMass-Lowell (last update: Sept. 2017)
%
      function f = fun1(t,a,w)
      f = exp(a*t).*sin(w*t);
