\[\left(-x \cdot \frac{1}{\tan B}\right) + \frac{1}{\sin B}\]

\left(-x \cdot \frac{1}{\tan B}\right) + \frac{1}{\sin B}

double f(double B, double x) {
        double r8285 = x;
        double r8286 = 1.0;
        double r8287 = B;
        double r8288 = tan(r8287);
        double r8289 = r8286 / r8288;
        double r8290 = r8285 * r8289;
        double r8291 = -r8290;
        double r8292 = sin(r8287);
        double r8293 = r8286 / r8292;
        double r8294 = r8291 + r8293;
        return r8294;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019173 
(FPCore (B x)
  :name "VandenBroeck and Keller, Equation (24)"
  (+ (- (* x (/ 1.0 (tan B)))) (/ 1.0 (sin B))))

Backtrace

atab-pick-alt: contract violation expected: alt? given: '(#<alt (λ (B x) (+ (- (* x (/ 1.0 (tan B)))) (/ 1.0 (sin B))))>) in: the range of the #:picking-func argument of (-> alt-table? #:only-fresh boolean? #:picking-func (-> (listof alt?) alt?) (values alt? alt-table?)) contract from: /data/pavpan/nightlies/herbie/no-costs-2/src/core/alt-table.rkt blaming: /data/pavpan/nightlies/herbie/no-costs-2/src/mainloop.rkt (assuming the contract is correct) at: /data/pavpan/nightlies/herbie/no-costs-2/src/core/alt-table.rkt:13.3		L	C
raise-blame-error16	/opt/racket-7.0/collects/racket/contract/private/blame.rkt	347	0
(unnamed)	/data/pavpan/nightlies/herbie/no-costs-2/src/core/alt-table.rkt	59	0
(unnamed)	/opt/racket-7.0/collects/racket/contract/private/arrow-val-first.rkt	388	18
choose-best-alt!	/data/pavpan/nightlies/herbie/no-costs-2/src/mainloop.rkt	110	0
run-iter!	/data/pavpan/nightlies/herbie/no-costs-2/src/mainloop.rkt	319	0
for-loop	/data/pavpan/nightlies/herbie/no-costs-2/src/mainloop.rkt	353	4
run-improve43	/data/pavpan/nightlies/herbie/no-costs-2/src/mainloop.rkt	338	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