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