atan Mul Mul x3 E asech Pow x0 0.484473073129685 
Mul Mul Mul x3 E Mul Mul Pow x0 -0.515526926870315 0.484473073129685 Pow Mul Mul Pow x0 0.484473073129685 Pow x0 0.484473073129685 sqrt Add 1 Mul -1 Pow Mul Pow x0 0.484473073129685 Pow x0 0.484473073129685 -1 -1 Pow Add 1 Mul Mul Mul x3 E asech Pow x0 0.484473073129685 Mul Mul x3 E asech Pow x0 0.484473073129685 -1 