comb_0 tanh
comb_1 atan
comb_2 asin
comb_3 log
comb_4 exp
comb_5 cubert
comb_6 sin
comb_7 acosh
comb_8 asinh
comb_9 square
comb_10 cos
comb_11 acos
comb_13 atanh
comb_15 sqrt
comb_16 lin
comb_17 tan
comb_18 cube