double code(double N) {
return ((double) (((double) atan(((double) (N + 1.0)))) - ((double) atan(N))));
}
double code(double N) {
return ((double) atan2(1.0, ((double) (1.0 + ((double) (N * ((double) (1.0 + N))))))));
}




Bits error versus N
Results
| Original | 14.6 |
|---|---|
| Target | 0.3 |
| Herbie | 0.3 |
Initial program 14.6
rmApplied diff-atan13.6
Simplified0.3
Simplified0.3
Final simplification0.3
herbie shell --seed 2020191
(FPCore (N)
:name "2atan (example 3.5)"
:precision binary64
:herbie-target
(atan (/ 1.0 (+ 1.0 (* N (+ N 1.0)))))
(- (atan (+ N 1.0)) (atan N)))