abs r arctan r arctand r cos r cosd r exp r floor r frac r 
initializerandom r random r 
ln r log2 r log10 r 
max rr min rr 
power rr round r 
sin r sind r sqrt r tan r tand r 
clip rrrr fifge rrrr switch rrr fifze rrr noise r normrn rr pulse rrr 
ramp rr sclprd trrtr step rr sumv trr sum t table trrrr tabhl trrrr /*