Mul Add -4 acoth Add x0 Mul tanh x0 3 Add x2 Add -0.0366435703258656 x1 
Mul Add x2 Add -0.0366435703258656 x1 Mul Add 1 Mul 3 Pow sech x0 2 Pow Add 1 Mul -1 Mul Add x0 Mul tanh x0 3 Add x0 Mul tanh x0 3 -1 