\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)\begin{array}{l}
\mathbf{if}\;M \cdot D \le -6.0268064309520738 \cdot 10^{70}:\\
\;\;\;\;\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}{\frac{2 \cdot d}{D}}\right)}^{2}\right) \cdot \frac{h}{\ell}\right)\\
\mathbf{else}:\\
\;\;\;\;\left({\left(\frac{\sqrt[3]{d} \cdot \sqrt[3]{d}}{\sqrt[3]{h} \cdot \sqrt[3]{h}}\right)}^{\left(\frac{1}{2}\right)} \cdot {\left(\frac{\sqrt[3]{d}}{\sqrt[3]{h}}\right)}^{\left(\frac{1}{2}\right)}\right) \cdot \left(\left({\left(\frac{\sqrt[3]{d} \cdot \sqrt[3]{d}}{1}\right)}^{\left(\frac{1}{2}\right)} \cdot {\left(\frac{\sqrt[3]{d}}{\ell}\right)}^{\left(\frac{1}{2}\right)}\right) \cdot \left(1 - \frac{\left(\frac{1}{2} \cdot {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2}\right) \cdot h}{\ell}\right)\right)\\
\end{array}double f(double d, double h, double l, double M, double D) {
double r211293 = d;
double r211294 = h;
double r211295 = r211293 / r211294;
double r211296 = 1.0;
double r211297 = 2.0;
double r211298 = r211296 / r211297;
double r211299 = pow(r211295, r211298);
double r211300 = l;
double r211301 = r211293 / r211300;
double r211302 = pow(r211301, r211298);
double r211303 = r211299 * r211302;
double r211304 = M;
double r211305 = D;
double r211306 = r211304 * r211305;
double r211307 = r211297 * r211293;
double r211308 = r211306 / r211307;
double r211309 = pow(r211308, r211297);
double r211310 = r211298 * r211309;
double r211311 = r211294 / r211300;
double r211312 = r211310 * r211311;
double r211313 = r211296 - r211312;
double r211314 = r211303 * r211313;
return r211314;
}
double f(double d, double h, double l, double M, double D) {
double r211315 = M;
double r211316 = D;
double r211317 = r211315 * r211316;
double r211318 = -6.026806430952074e+70;
bool r211319 = r211317 <= r211318;
double r211320 = d;
double r211321 = h;
double r211322 = r211320 / r211321;
double r211323 = 1.0;
double r211324 = 2.0;
double r211325 = r211323 / r211324;
double r211326 = pow(r211322, r211325);
double r211327 = l;
double r211328 = r211320 / r211327;
double r211329 = pow(r211328, r211325);
double r211330 = r211326 * r211329;
double r211331 = r211324 * r211320;
double r211332 = r211331 / r211316;
double r211333 = r211315 / r211332;
double r211334 = pow(r211333, r211324);
double r211335 = r211325 * r211334;
double r211336 = r211321 / r211327;
double r211337 = r211335 * r211336;
double r211338 = r211323 - r211337;
double r211339 = r211330 * r211338;
double r211340 = cbrt(r211320);
double r211341 = r211340 * r211340;
double r211342 = cbrt(r211321);
double r211343 = r211342 * r211342;
double r211344 = r211341 / r211343;
double r211345 = pow(r211344, r211325);
double r211346 = r211340 / r211342;
double r211347 = pow(r211346, r211325);
double r211348 = r211345 * r211347;
double r211349 = 1.0;
double r211350 = r211341 / r211349;
double r211351 = pow(r211350, r211325);
double r211352 = r211340 / r211327;
double r211353 = pow(r211352, r211325);
double r211354 = r211351 * r211353;
double r211355 = r211317 / r211331;
double r211356 = pow(r211355, r211324);
double r211357 = r211325 * r211356;
double r211358 = r211357 * r211321;
double r211359 = r211358 / r211327;
double r211360 = r211323 - r211359;
double r211361 = r211354 * r211360;
double r211362 = r211348 * r211361;
double r211363 = r211319 ? r211339 : r211362;
return r211363;
}



Bits error versus d



Bits error versus h



Bits error versus l



Bits error versus M



Bits error versus D
Results
if (* M D) < -6.026806430952074e+70Initial program 37.6
rmApplied associate-/l*36.5
if -6.026806430952074e+70 < (* M D) Initial program 25.4
rmApplied add-cube-cbrt25.7
Applied add-cube-cbrt25.8
Applied times-frac25.8
Applied unpow-prod-down20.7
rmApplied *-un-lft-identity20.7
Applied add-cube-cbrt20.9
Applied times-frac20.9
Applied unpow-prod-down17.0
rmApplied associate-*r/14.1
rmApplied associate-*l*14.4
Final simplification16.4
herbie shell --seed 2020062 +o rules:numerics
(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)))))