\[\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}\]

\frac{x \cdot y - \left(z \cdot 9\right) \cdot t}{a \cdot 2}

double f(double x, double y, double z, double t, double a) {
        double r9272 = x;
        double r9273 = y;
        double r9274 = r9272 * r9273;
        double r9275 = z;
        double r9276 = 9.0;
        double r9277 = r9275 * r9276;
        double r9278 = t;
        double r9279 = r9277 * r9278;
        double r9280 = r9274 - r9279;
        double r9281 = a;
        double r9282 = 2.0;
        double r9283 = r9281 * r9282;
        double r9284 = r9280 / r9283;
        return r9284;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 +o rules:numerics
(FPCore (x y z t a)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, I"

  :herbie-target
  (if (< a -2.090464557976709e+86) (- (* 0.5 (/ (* y x) a)) (* 4.5 (/ t (/ a z)))) (if (< a 2.144030707833976e+99) (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0)) (- (* (/ y a) (* x 0.5)) (* (/ t a) (* z 4.5)))))

  (/ (- (* x y) (* (* z 9.0) t)) (* a 2.0)))

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