Average Error: 0.0 → 0.0
Time: 4.9s
Precision: 64
Internal precision: 384
\[\log \left(1 + e^{x}\right)\]
⬇
\[\log \left(1 + e^{x}\right)\]

Error

Bits error versus x

Derivation

  1. Initial program 0.0

    \[\log \left(1 + e^{x}\right)\]
  2. Removed slow pow expressions

Runtime

Time bar (total: 4.9s) Debug log

Please include this information when filing a bug report:

herbie shell --seed '#(3052192724 3812927732 3686175817 630908657 2373248591 511094450)'
(FPCore (x)
  :name "logexp"
  :pre (<= -8 x 8)
  (log (+ 1 (exp x))))