0.707110000000000016 \cdot \left(\frac{2.30753 + x \cdot 0.27061000000000002}{1 + x \cdot \left(0.992290000000000005 + x \cdot 0.044810000000000003\right)} - x\right)\sqrt[3]{{\left(\frac{2.30753 + x \cdot 0.27061000000000002}{1 + x \cdot \left(0.992290000000000005 + x \cdot 0.044810000000000003\right)} \cdot 0.707110000000000016\right)}^{3}} + 0.707110000000000016 \cdot \left(-x\right)double f(double x) {
double r141534 = 0.70711;
double r141535 = 2.30753;
double r141536 = x;
double r141537 = 0.27061;
double r141538 = r141536 * r141537;
double r141539 = r141535 + r141538;
double r141540 = 1.0;
double r141541 = 0.99229;
double r141542 = 0.04481;
double r141543 = r141536 * r141542;
double r141544 = r141541 + r141543;
double r141545 = r141536 * r141544;
double r141546 = r141540 + r141545;
double r141547 = r141539 / r141546;
double r141548 = r141547 - r141536;
double r141549 = r141534 * r141548;
return r141549;
}
double f(double x) {
double r141550 = 2.30753;
double r141551 = x;
double r141552 = 0.27061;
double r141553 = r141551 * r141552;
double r141554 = r141550 + r141553;
double r141555 = 1.0;
double r141556 = 0.99229;
double r141557 = 0.04481;
double r141558 = r141551 * r141557;
double r141559 = r141556 + r141558;
double r141560 = r141551 * r141559;
double r141561 = r141555 + r141560;
double r141562 = r141554 / r141561;
double r141563 = 0.70711;
double r141564 = r141562 * r141563;
double r141565 = 3.0;
double r141566 = pow(r141564, r141565);
double r141567 = cbrt(r141566);
double r141568 = -r141551;
double r141569 = r141563 * r141568;
double r141570 = r141567 + r141569;
return r141570;
}



Bits error versus x
Results
Initial program 0.0
rmApplied sub-neg0.0
Applied distribute-lft-in0.0
Simplified0.0
rmApplied add-cbrt-cube0.5
Applied add-cbrt-cube0.5
Applied add-cbrt-cube21.9
Applied cbrt-undiv21.9
Applied cbrt-unprod21.4
Simplified0.0
Final simplification0.0
herbie shell --seed 2020042
(FPCore (x)
:name "Numeric.SpecFunctions:invErfc from math-functions-0.1.5.2, B"
:precision binary64
(* 0.70711 (- (/ (+ 2.30753 (* x 0.27061)) (+ 1 (* x (+ 0.99229 (* x 0.04481))))) x)))