0.037 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.186 * * * [progress]: [2/2] Setting up program.
0.194 * [progress]: [Phase 2 of 3] Improving.
0.195 * [simplify]: Simplifying:
  (/ (tan (/ x (* y 2.0))) (sin (/ x (* y 2.0))))