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