Exception for Falkner and Boettcher, Equation (22+)

Math

\[\frac{4}{\left(\left(3 \cdot \pi\right) \cdot \left(1 - v \cdot v\right)\right) \cdot \sqrt{2 - 6 \cdot \left(v \cdot v\right)}}\]

C

double f(double v) {
        double r8538 = 4.0;
        double r8539 = 3.0;
        double r8540 = atan2(1.0, 0.0);
        double r8541 = r8539 * r8540;
        double r8542 = 1.0;
        double r8543 = v;
        double r8544 = r8543 * r8543;
        double r8545 = r8542 - r8544;
        double r8546 = r8541 * r8545;
        double r8547 = 2.0;
        double r8548 = 6.0;
        double r8549 = r8548 * r8544;
        double r8550 = r8547 - r8549;
        double r8551 = sqrt(r8550);
        double r8552 = r8546 * r8551;
        double r8553 = r8538 / r8552;
        return r8553;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 +o rules:numerics
(FPCore (v)
  :name "Falkner and Boettcher, Equation (22+)"
  (/ 4.0 (* (* (* 3.0 PI) (- 1.0 (* v v))) (sqrt (- 2.0 (* 6.0 (* v v)))))))

Backtrace

get-representation: Unknown representation #f		L	C
loop	/data/pavpan/nightlies/herbie/interface2/src/points.rkt	122	4
prepare-points	/data/pavpan/nightlies/herbie/interface2/src/points.rkt	146	0
setup-prog!34	/data/pavpan/nightlies/herbie/interface2/src/mainloop.rkt	67	0
run-improve43	/data/pavpan/nightlies/herbie/interface2/src/mainloop.rkt	339	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28
run	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28