0.726 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.228 * * * [progress]: [2/2] Setting up program.
0.241 * [progress]: [Phase 2 of 3] Improving.
0.245 * [simplify]: Simplifying:
  (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x)))))