Logarithmic Transform
(FPCore (c x y) :precision binary64 (* c (log (+ 1.0 (* (- (pow (E) x) 1.0) y)))))
\begin{array}{l}
\\
c \cdot \log \left(1 + \left({\mathsf{E}\left(\right)}^{x} - 1\right) \cdot y\right)
\end{array}
herbie shell --seed 2025030
(FPCore (c x y)
:name "Logarithmic Transform"
:precision binary64
:alt
(* c (log1p (* (expm1 x) y)))
(* c (log (+ 1.0 (* (- (pow (E) x) 1.0) y)))))
Please file a bug report with this information.
| operator-info: Unknown operator binary64 | L | C | |
|---|---|---|---|
| (unnamed) | /usr/share/racket/collects/racket/contract/private/arrow-higher-order.rkt | 379 | 33 |
| enode-type | /home/nightlies/herbie/really-crazy-encodings/src/core/egg-herbie.rkt | 566 | 0 |
| split-untyped-eclasses | /home/nightlies/herbie/really-crazy-encodings/src/core/egg-herbie.rkt | 621 | 0 |
| make-typed-eclasses | /home/nightlies/herbie/really-crazy-encodings/src/core/egg-herbie.rkt | 791 | 0 |
| make-regraph | /home/nightlies/herbie/really-crazy-encodings/src/core/egg-herbie.rkt | 838 | 0 |
| egraph-best | /home/nightlies/herbie/really-crazy-encodings/src/core/egg-herbie.rkt | 1395 | 0 |
| simplify-batch | /home/nightlies/herbie/really-crazy-encodings/src/core/simplify.rkt | 19 | 0 |
| (unnamed) | /usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt | 486 | 18 |
| initial-simplify | /home/nightlies/herbie/really-crazy-encodings/src/core/preprocess.rkt | 54 | 0 |
| find-preprocessing | /home/nightlies/herbie/really-crazy-encodings/src/core/preprocess.rkt | 81 | 0 |
| run-improve! | /home/nightlies/herbie/really-crazy-encodings/src/core/mainloop.rkt | 45 | 0 |
| get-alternatives/report | /home/nightlies/herbie/really-crazy-encodings/src/api/sandbox.rkt | 174 | 0 |
| (unnamed) | /home/nightlies/herbie/really-crazy-encodings/src/api/sandbox.rkt | 265 | 6 |
| (unnamed) | /usr/share/racket/pkgs/profile-lib/main.rkt | 40 | 10 |
| profile-thunk | /usr/share/racket/pkgs/profile-lib/main.rkt | 9 | 0 |
| in-engine | /home/nightlies/herbie/really-crazy-encodings/src/api/sandbox.rkt | 283 | 2 |
| (unnamed) | /usr/share/racket/collects/racket/engine.rkt | 42 | 24 |