0.962 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.481 * * * [progress]: [2/2] Setting up program.
0.490 * [progress]: [Phase 2 of 3] Improving.
0.493 * [simplify]: Simplifying:
  (/ (- x (sin x)) (- x (tan x)))