\[\left({\left(\frac{d}{h}\right)}^{\left(\frac{1}{2}\right)} \cdot {\left(\frac{d}{\ell}\right)}^{\left(\frac{1}{2}\right)}\right) \cdot \left(1 - \left(\frac{1}{2} \cdot {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2}\right) \cdot \frac{h}{\ell}\right)\]

\left({\left(\frac{d}{h}\right)}^{\left(\frac{1}{2}\right)} \cdot {\left(\frac{d}{\ell}\right)}^{\left(\frac{1}{2}\right)}\right) \cdot \left(1 - \left(\frac{1}{2} \cdot {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2}\right) \cdot \frac{h}{\ell}\right)

double f(double d, double h, double l, double M, double D) {
        double r157018 = d;
        double r157019 = h;
        double r157020 = r157018 / r157019;
        double r157021 = 1.0;
        double r157022 = 2.0;
        double r157023 = r157021 / r157022;
        double r157024 = pow(r157020, r157023);
        double r157025 = l;
        double r157026 = r157018 / r157025;
        double r157027 = pow(r157026, r157023);
        double r157028 = r157024 * r157027;
        double r157029 = M;
        double r157030 = D;
        double r157031 = r157029 * r157030;
        double r157032 = r157022 * r157018;
        double r157033 = r157031 / r157032;
        double r157034 = pow(r157033, r157022);
        double r157035 = r157023 * r157034;
        double r157036 = r157019 / r157025;
        double r157037 = r157035 * r157036;
        double r157038 = r157021 - r157037;
        double r157039 = r157028 * r157038;
        return r157039;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019323 
(FPCore (d h l M D)
  :name "Henrywood and Agarwal, Equation (12)"
  :precision binary64
  (* (* (pow (/ d h) (/ 1 2)) (pow (/ d l) (/ 1 2))) (- 1 (* (* (/ 1 2) (pow (/ (* M D) (* 2 d)) 2)) (/ h l)))))

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