Add sech Add Add asin sech x0 sqrt x1 x0 Add -1 pi 
Mul Mul tanh Add Add asin sech x0 sqrt x1 x0 Mul -1 sech Add Add asin sech x0 sqrt x1 x0 Add Mul Mul tanh x0 Mul -1 sech x0 Pow sqrt Add 1 Mul -1 Mul sech x0 sech x0 -1 1 