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

\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 r592848 = x;
        double r592849 = y;
        double r592850 = r592848 * r592849;
        double r592851 = z;
        double r592852 = 9.0;
        double r592853 = r592851 * r592852;
        double r592854 = t;
        double r592855 = r592853 * r592854;
        double r592856 = r592850 - r592855;
        double r592857 = a;
        double r592858 = 2.0;
        double r592859 = r592857 * r592858;
        double r592860 = r592856 / r592859;
        return r592860;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019323 +o rules:numerics
(FPCore (x y z t a)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, I"
  :precision binary64

  :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 t))) (* a 2)) (- (* (/ y a) (* x 0.5)) (* (/ t a) (* z 4.5)))))

  (/ (- (* x y) (* (* z 9) t)) (* a 2)))

Backtrace

get-representation: Unknown representation real		L	C
(unnamed)	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/core/regimes.rkt	65	3
filter	/opt/racket-7.2/collects/racket/private/list.rkt	256	2
infer-splitpoints	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/core/regimes.rkt	34	0
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