Thanks for the help, I think I've got it! Now I just have to work out my left from my right...
Something scary happened earlier, by the way. When I was typing tri0,tri1, and tri2, firstly I didn't put spaces as though it was a function, and secondly I though '1' in my head when I typed '0'. I think I'm going insane, lol.
Something scary happened earlier, by the way. When I was typing tri0,tri1, and tri2, firstly I didn't put spaces as though it was a function, and secondly I though '1' in my head when I typed '0'. I think I'm going insane, lol.