1.403 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.196 * * * [progress]: [2/2] Setting up program.
0.200 * [progress]: [Phase 2 of 3] Improving.
0.205 * [simplify]: Simplifying:
  (/ (- 1.0 (* (tan x) (tan x))) (+ 1.0 (* (tan x) (tan x))))