(/ (- 1) (tan (/ (* x PI) 360)))

Average Error: 27.7 → 27.7

Time: 2.4s

Precision: binary64

• could not determine a ground truth for program body

  1. x = 5.863062289189671e+247

Math

\[\frac{-1}{\tan \left(\frac{x \cdot \pi}{360}\right)}\]

↓

\[\frac{-1}{\tan \left(\frac{x \cdot \pi}{360}\right)}\]

Error

Bits error versus x

Derivation

1. Initial program 27.7

   \[\frac{-1}{\tan \left(\frac{x \cdot \pi}{360}\right)}\]

2. Final simplification 27.7

   \[\leadsto \frac{-1}{\tan \left(\frac{x \cdot \pi}{360}\right)}\]

Reproduce

herbie shell --seed 2020152 
(FPCore (x)
  :name "(/ (- 1) (tan (/ (* x PI) 360)))"
  :precision binary64
  (/ (neg 1.0) (tan (/ (* x PI) 360.0))))