coth Add Mul 1.03416557486616 asech x0 -1.57079632679490 
Mul Mul -1 Pow csch Add Mul 1.03416557486616 asech x0 -1.57079632679490 2 Mul 1.03416557486616 Pow Mul Mul x0 x0 sqrt Add 1 Mul -1 Pow Mul x0 x0 -1 -1 