sec coth Mul Add 1 pi sec Add x0 x0 
Mul Mul tan coth Mul Add 1 pi sec Add x0 x0 sec coth Mul Add 1 pi sec Add x0 x0 Mul Mul -1 Pow csch Mul Add 1 pi sec Add x0 x0 2 Mul Add 1 pi Mul Mul tan Add x0 x0 sec Add x0 x0 2 