Use the --timeout flag to change the timeout.
\left(\left(\sqrt{\pi \cdot 2} \cdot {\left(\left(\left(z - 1\right) + 7\right) + 0.5\right)}^{\left(\left(z - 1\right) + 0.5\right)}\right) \cdot e^{-\left(\left(\left(z - 1\right) + 7\right) + 0.5\right)}\right) \cdot \left(\left(\left(\left(\left(\left(\left(\left(0.9999999999998099298181841732002794742584 + \frac{676.5203681218850988443591631948947906494}{\left(z - 1\right) + 1}\right) + \frac{-1259.139216722402807135949842631816864014}{\left(z - 1\right) + 2}\right) + \frac{771.3234287776531346025876700878143310547}{\left(z - 1\right) + 3}\right) + \frac{-176.6150291621405870046146446838974952698}{\left(z - 1\right) + 4}\right) + \frac{12.50734327868690520801919774385169148445}{\left(z - 1\right) + 5}\right) + \frac{-0.1385710952657201178173096423051902092993}{\left(z - 1\right) + 6}\right) + \frac{9.984369578019571583242346146658263705831 \cdot 10^{-6}}{\left(z - 1\right) + 7}\right) + \frac{1.505632735149311617592788074479481785772 \cdot 10^{-7}}{\left(z - 1\right) + 8}\right)double f(double z) {
double r201585 = atan2(1.0, 0.0);
double r201586 = 2.0;
double r201587 = r201585 * r201586;
double r201588 = sqrt(r201587);
double r201589 = z;
double r201590 = 1.0;
double r201591 = r201589 - r201590;
double r201592 = 7.0;
double r201593 = r201591 + r201592;
double r201594 = 0.5;
double r201595 = r201593 + r201594;
double r201596 = r201591 + r201594;
double r201597 = pow(r201595, r201596);
double r201598 = r201588 * r201597;
double r201599 = -r201595;
double r201600 = exp(r201599);
double r201601 = r201598 * r201600;
double r201602 = 0.9999999999998099;
double r201603 = 676.5203681218851;
double r201604 = r201591 + r201590;
double r201605 = r201603 / r201604;
double r201606 = r201602 + r201605;
double r201607 = -1259.1392167224028;
double r201608 = r201591 + r201586;
double r201609 = r201607 / r201608;
double r201610 = r201606 + r201609;
double r201611 = 771.3234287776531;
double r201612 = 3.0;
double r201613 = r201591 + r201612;
double r201614 = r201611 / r201613;
double r201615 = r201610 + r201614;
double r201616 = -176.6150291621406;
double r201617 = 4.0;
double r201618 = r201591 + r201617;
double r201619 = r201616 / r201618;
double r201620 = r201615 + r201619;
double r201621 = 12.507343278686905;
double r201622 = 5.0;
double r201623 = r201591 + r201622;
double r201624 = r201621 / r201623;
double r201625 = r201620 + r201624;
double r201626 = -0.13857109526572012;
double r201627 = 6.0;
double r201628 = r201591 + r201627;
double r201629 = r201626 / r201628;
double r201630 = r201625 + r201629;
double r201631 = 9.984369578019572e-06;
double r201632 = r201631 / r201593;
double r201633 = r201630 + r201632;
double r201634 = 1.5056327351493116e-07;
double r201635 = 8.0;
double r201636 = r201591 + r201635;
double r201637 = r201634 / r201636;
double r201638 = r201633 + r201637;
double r201639 = r201601 * r201638;
return r201639;
}
herbie shell --seed 2019344 +o rules:numerics
(FPCore (z)
:name "Jmat.Real.gamma, branch z greater than 0.5"
:precision binary64
(* (* (* (sqrt (* PI 2)) (pow (+ (+ (- z 1) 7) 0.5) (+ (- z 1) 0.5))) (exp (- (+ (+ (- z 1) 7) 0.5)))) (+ (+ (+ (+ (+ (+ (+ (+ 0.9999999999998099 (/ 676.5203681218851 (+ (- z 1) 1))) (/ -1259.1392167224028 (+ (- z 1) 2))) (/ 771.3234287776531 (+ (- z 1) 3))) (/ -176.6150291621406 (+ (- z 1) 4))) (/ 12.507343278686905 (+ (- z 1) 5))) (/ -0.13857109526572012 (+ (- z 1) 6))) (/ 9.984369578019572e-06 (+ (- z 1) 7))) (/ 1.5056327351493116e-07 (+ (- z 1) 8)))))