comb_0 atanh comb_1 cubert comb_2 cube comb_3 cosh comb_4 log comb_5 lin comb_6 sqrt comb_7 sin comb_8 exp comb_9 cos comb_10 square comb_11 asinh comb_12 acos comb_13 acosh comb_14 tan comb_15 sinh comb_16 atan comb_17 tanh comb_18 asin