


Bits error versus c0



Bits error versus w



Bits error versus h



Bits error versus D



Bits error versus d



Bits error versus M
Results
if D < -4.3083809125813214e-39 or -4.0302553235580764e-115 < D < 8.857546390531178e-150Initial program 60.0
Initial simplification53.6
rmApplied add-cube-cbrt53.7
if -4.3083809125813214e-39 < D < -4.0302553235580764e-115Initial program 52.8
if 8.857546390531178e-150 < D Initial program 55.3
Initial simplification50.7
rmApplied sqrt-prod53.5
rmApplied div-inv53.5
rmApplied add-sqr-sqrt53.5
rmApplied add-sqr-sqrt53.5
Applied associate-*l*53.5
Final simplification53.6
herbie shell --seed 2018360
(FPCore (c0 w h D d M)
:name "Henrywood and Agarwal, Equation (13)"
(* (/ c0 (* 2 w)) (+ (/ (* c0 (* d d)) (* (* w h) (* D D))) (sqrt (- (* (/ (* c0 (* d d)) (* (* w h) (* D D))) (/ (* c0 (* d d)) (* (* w h) (* D D)))) (* M M))))))
Time bar (total: 1.7m)Debug log
2 alts after pruning (2 fresh and 0 done)
Merged error: 52.1b
Found 4 expressions with local error:
| 27.2b | (+ (sqrt (* (+ M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (- (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))) (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) |
| 15.4b | (sqrt (* (+ M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (- (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
4 calls. Slowest were:
| 24.0ms | (+ (sqrt (* (+ M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (- (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))) (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) |
| 12.0ms | (sqrt (* (+ M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (- (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))) |
| 9.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
4 calls. Slowest were:
| 471.0ms | (+ (sqrt (* (+ M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (- (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))) (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) |
| 364.0ms | (sqrt (* (+ M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (- (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))) |
| 110.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 103.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
170 calls. Slowest were:
| 561.0ms | (* (sqrt (* (+ (* M M) (- (* (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (* M (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))))) (+ (* (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) (* (/ (/ c0 h) w) (* (/ d D) (/ d D)))) (+ (* M M) (* (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) M))))) D) |
| 529.0ms | (+ (log (/ (/ c0 h) w)) (+ (log (/ d D)) (log (/ d D)))) |
| 498.0ms | (/ (* c0 (pow d 2)) (* (pow D 2) (* w h))) |
12 alts after pruning (12 fresh and 0 done)
Merged error: 48.2b
Found 4 expressions with local error:
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 4.3b | (/ (/ c0 h) w) |
4 calls. Slowest were:
| 20.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 11.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 9.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
4 calls. Slowest were:
| 105.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 99.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 92.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 14.0ms | (/ (/ c0 h) w) |
68 calls. Slowest were:
| 609.0ms | (+ (log (/ (/ c0 h) w)) (+ (log (/ d D)) (log (/ d D)))) |
| 556.0ms | (+ (log (/ (/ c0 h) w)) (+ (log (/ d D)) (log (/ d D)))) |
| 555.0ms | (+ (log (/ (/ c0 h) w)) (+ (log (/ d D)) (log (/ d D)))) |
13 alts after pruning (13 fresh and 0 done)
Merged error: 48.2b
Found 4 expressions with local error:
| 15.0b | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 4.4b | (* (/ c0 h) (/ 1 w)) |
4 calls. Slowest were:
| 29.0ms | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 17.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 16.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
4 calls. Slowest were:
| 130.0ms | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 100.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 94.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 14.0ms | (* (/ c0 h) (/ 1 w)) |
103 calls. Slowest were:
| 561.0ms | (* (* c0 (/ 1 w)) (* (/ d D) d)) |
| 561.0ms | (+ (log (/ (/ c0 h) w)) (+ (log (/ d D)) (log (/ d D)))) |
| 521.0ms | (/ (* c0 (pow d 2)) (* (pow D 2) (* w h))) |
13 alts after pruning (13 fresh and 0 done)
Merged error: 48.2b
Found 4 expressions with local error:
| 15.0b | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 15.0b | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 15.0b | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
4 calls. Slowest were:
| 25.0ms | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 18.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 18.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
4 calls. Slowest were:
| 131.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
| 121.0ms | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 89.0ms | (* (* (/ c0 h) (/ 1 w)) (* (/ d D) (/ d D))) |
| 87.0ms | (* (/ (/ c0 h) w) (* (/ d D) (/ d D))) |
134 calls. Slowest were:
| 605.0ms | (* (* c0 (/ 1 w)) (* d (/ d D))) |
| 595.0ms | (+ (log (/ (/ c0 h) w)) (+ (log (/ d D)) (log (/ d D)))) |
| 581.0ms | (+ (+ (log (/ c0 h)) (log (/ 1 w))) (+ (log (/ d D)) (log (/ d D)))) |
13 alts after pruning (13 fresh and 0 done)
Merged error: 48.2b
24.2% (4.9b remaining)
Error of 53.6b against oracle of 48.6b and baseline of 55.2b