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 r124969 = 0.70711;
double r124970 = 2.30753;
double r124971 = x;
double r124972 = 0.27061;
double r124973 = r124971 * r124972;
double r124974 = r124970 + r124973;
double r124975 = 1.0;
double r124976 = 0.99229;
double r124977 = 0.04481;
double r124978 = r124971 * r124977;
double r124979 = r124976 + r124978;
double r124980 = r124971 * r124979;
double r124981 = r124975 + r124980;
double r124982 = r124974 / r124981;
double r124983 = r124982 - r124971;
double r124984 = r124969 * r124983;
return r124984;
}
double f(double x) {
double r124985 = 2.30753;
double r124986 = x;
double r124987 = 0.27061;
double r124988 = r124986 * r124987;
double r124989 = r124985 + r124988;
double r124990 = 1.0;
double r124991 = 0.99229;
double r124992 = 0.04481;
double r124993 = r124986 * r124992;
double r124994 = r124991 + r124993;
double r124995 = r124986 * r124994;
double r124996 = r124990 + r124995;
double r124997 = r124989 / r124996;
double r124998 = 0.70711;
double r124999 = r124997 * r124998;
double r125000 = 3.0;
double r125001 = pow(r124999, r125000);
double r125002 = cbrt(r125001);
double r125003 = -r124986;
double r125004 = r124998 * r125003;
double r125005 = r125002 + r125004;
return r125005;
}



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)))