\[\left(\left(\left(\left(\left(2 \cdot x1\right) \cdot x2\right) \cdot x3 + \left(3 \cdot x3\right) \cdot x3\right) - \left(\left(x2 \cdot x1\right) \cdot x2\right) \cdot x3\right) + \left(3 \cdot x3\right) \cdot x3\right) - x2\]

⬇

\[\left(6 \cdot {x3}^2 - x2\right) - \left(x2 \cdot x3\right) \cdot \left(x1 \cdot \left(x2 - 2\right)\right)\]

Error

The X axis uses an exponential scale — Bits error versus `x1`

Derivation

Initial program 0.1
\[\left(\left(\left(\left(\left(2 \cdot x1\right) \cdot x2\right) \cdot x3 + \left(3 \cdot x3\right) \cdot x3\right) - \left(\left(x2 \cdot x1\right) \cdot x2\right) \cdot x3\right) + \left(3 \cdot x3\right) \cdot x3\right) - x2\]
Applied simplify 0.1
\[\leadsto \color{blue}{\left(\left(x3 \cdot 3\right) \cdot \left(x3 + x3\right) - x2\right) - \left(x2 \cdot x3\right) \cdot \left(x1 \cdot \left(x2 - 2\right)\right)}\]
Applied taylor 0.1
\[\leadsto \left(6 \cdot {x3}^2 - x2\right) - \left(x2 \cdot x3\right) \cdot \left(x1 \cdot \left(x2 - 2\right)\right)\]
Taylor expanded around 0 0.1

\[\leadsto \left(\color{blue}{6 \cdot {x3}^2} - x2\right) - \left(x2 \cdot x3\right) \cdot \left(x1 \cdot \left(x2 - 2\right)\right)\]
Removed slow pow expressions

Runtime

Please include this information when filing a bug report:

herbie shell --seed '#(3052192724 3812927732 3686175817 630908657 2373248591 511094450)'
(FPCore (x1 x2 x3)
  :name "rigidBody2"
  :pre (and (<= -15 x1 15) (<= -15 x2 15) (<= -15 x3 15))
  (- (+ (- (+ (* (* (* 2 x1) x2) x3) (* (* 3 x3) x3)) (* (* (* x2 x1) x2) x3)) (* (* 3 x3) x3)) x2))