0.613 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.236 * * * [progress]: [2/2] Setting up program.
0.242 * [progress]: [Phase 2 of 3] Improving.
0.246 * [simplify]: Simplifying:
  (/ (- 1.0 (* (tan x) (tan x))) (+ 1.0 (* (tan x) (tan x))))
0.246 * [simplify]: Sending expressions to egg_math:
 (/ (- 1.0 (* (tan h0) (tan h0))) (+ 1.0 (* (tan h0) (tan h0))))