asec Pow exp sec asinh Add E -3 x0 
Mul Mul Pow exp sec asinh Add E -3 Add x0 -1 Mul exp sec asinh Add E -3 log exp sec asinh Add E -3 Pow Mul Mul sqrt Add 1 Mul -1 Pow Mul Pow exp sec asinh Add E -3 x0 Pow exp sec asinh Add E -3 x0 -1 Pow exp sec asinh Add E -3 x0 Pow exp sec asinh Add E -3 x0 -1 