Exception for Toniolo and Linder, Equation (2)

Math

\[\sin^{-1} \left(\sqrt{\frac{1 - {\left(\frac{Om}{Omc}\right)}^{2}}{1 + 2 \cdot {\left(\frac{t}{\ell}\right)}^{2}}}\right)\]

C

double f(double t, double l, double Om, double Omc) {
        double r8058 = 1.0;
        double r8059 = Om;
        double r8060 = Omc;
        double r8061 = r8059 / r8060;
        double r8062 = 2.0;
        double r8063 = pow(r8061, r8062);
        double r8064 = r8058 - r8063;
        double r8065 = t;
        double r8066 = l;
        double r8067 = r8065 / r8066;
        double r8068 = pow(r8067, r8062);
        double r8069 = r8062 * r8068;
        double r8070 = r8058 + r8069;
        double r8071 = r8064 / r8070;
        double r8072 = sqrt(r8071);
        double r8073 = asin(r8072);
        return r8073;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 
(FPCore (t l Om Omc)
  :name "Toniolo and Linder, Equation (2)"
  (asin (sqrt (/ (- 1.0 (pow (/ Om Omc) 2.0)) (+ 1.0 (* 2.0 (pow (/ t l) 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