\[\left(-x \cdot \frac{1}{\tan B}\right) + \frac{F}{\sin B} \cdot {\left(\left(F \cdot F + 2\right) + 2 \cdot x\right)}^{\left(-\frac{1}{2}\right)}\]

\left(-x \cdot \frac{1}{\tan B}\right) + \frac{F}{\sin B} \cdot {\left(\left(F \cdot F + 2\right) + 2 \cdot x\right)}^{\left(-\frac{1}{2}\right)}

double f(double F, double B, double x) {
        double r44598 = x;
        double r44599 = 1.0;
        double r44600 = B;
        double r44601 = tan(r44600);
        double r44602 = r44599 / r44601;
        double r44603 = r44598 * r44602;
        double r44604 = -r44603;
        double r44605 = F;
        double r44606 = sin(r44600);
        double r44607 = r44605 / r44606;
        double r44608 = r44605 * r44605;
        double r44609 = 2.0;
        double r44610 = r44608 + r44609;
        double r44611 = r44609 * r44598;
        double r44612 = r44610 + r44611;
        double r44613 = r44599 / r44609;
        double r44614 = -r44613;
        double r44615 = pow(r44612, r44614);
        double r44616 = r44607 * r44615;
        double r44617 = r44604 + r44616;
        return r44617;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019323 
(FPCore (F B x)
  :name "VandenBroeck and Keller, Equation (23)"
  :precision binary64
  (+ (- (* x (/ 1 (tan B)))) (* (/ F (sin B)) (pow (+ (+ (* F F) 2) (* 2 x)) (- (/ 1 2))))))

Backtrace

dict-ref: no value for key: 'branch44597 in: '((F . binary64) (B . binary64) (x . binary64))		L	C
for-loop	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/points.rkt	106	4
make-sampler	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/points.rkt	99	0
prepare-points-intervals	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/points.rkt	121	0
for-loop	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/core/regimes.rkt	233	9
sindices->spoints	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/core/regimes.rkt	194	0
f33	/opt/racket-7.2/collects/racket/match/compiler.rkt	507	40
get-final-combination	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/mainloop.rkt	369	0
(unnamed)	/opt/racket-7.2/collects/racket/private/more-scheme.rkt	261	28
run	/opt/racket-7.2/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.2/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.2/collects/racket/private/more-scheme.rkt	261	28