[jitter] Implementing a 1D difference equation in Jitter

Hi Aaron,

You should have a look at the jit.convolve object.  This kind of stuff
should be fairly straightforward to do.

#P outlet 14 193 15 0;
#P window setfont "Sans Serif" 9.;
#P window linecount 1;
#P newex 179 57 48 196617 loadbang;
#P message 179 79 52 196617 0.5 0.5 0;
#P newex 179 98 68 196617 jit.fill kernel;
#P newex 179 120 140 196617 jit.matrix kernel 1 float32 3;
#P inlet 14 108 15 0;
#P newex 14 146 175 196617 jit.convolve @origin 1 0 @in2_dim 3;
#P connect 4 0 3 0;
#P connect 3 0 2 0;
#P connect 2 0 0 1;
#P connect 0 0 6 0;
#P connect 1 0 0 0;
#P connect 5 0 4 0;
#P window clipboard copycount 7;