Error

Derivation

1. Initial program 15.0

   \[\frac{1}{x + 1} - \frac{1}{x}\]
2. Using strategy rm

3. Applied frac-sub 14.3

   \[\leadsto \color{blue}{\frac{1 \cdot x - \left(x + 1\right) \cdot 1}{\left(x + 1\right) \cdot x}}\]

4. Applied simplify 14.3

   \[\leadsto \frac{\color{blue}{x - \left(x + 1\right)}}{\left(x + 1\right) \cdot x}\]

5. Applied taylor 14.3

   \[\leadsto \frac{x - \left(x + 1\right)}{x + {x}^2}\]

6. Taylor expanded around 0 14.3

   \[\leadsto \frac{x - \left(x + 1\right)}{\color{blue}{x + {x}^2}}\]

7. Applied simplify 0.1

   \[\leadsto \color{blue}{\frac{\frac{-1}{x}}{1 + x}}\]
8. Removed slow pow expressions

Runtime

Time bar (total: 8.4s) Debug log

Please include this information when filing a bug report:

herbie shell --seed '#(644180380 3784176976 401987740 22459203 1940947670 3323606534)'
(FPCore (x)
  :name "2frac (problem 3.3.1)"
  (- (/ 1 (+ x 1)) (/ 1 x)))