Average Error: 0.0 → 0.0
Time: 1.5s
Precision: 64
\[x + \frac{y - x}{z}\]
↓
\[\left(x + \frac{y}{z}\right) - \frac{x}{z}\]
x + \frac{y - x}{z}
↓
\left(x + \frac{y}{z}\right) - \frac{x}{z}
double f(double x, double y, double z) {
        double r8163 = x;
        double r8164 = y;
        double r8165 = r8164 - r8163;
        double r8166 = z;
        double r8167 = r8165 / r8166;
        double r8168 = r8163 + r8167;
        return r8168;
}
↓
double f(double x, double y, double z) {
        double r8169 = x;
        double r8170 = y;
        double r8171 = z;
        double r8172 = r8170 / r8171;
        double r8173 = r8169 + r8172;
        double r8174 = r8169 / r8171;
        double r8175 = r8173 - r8174;
        return r8175;
}

Error

Bits error versus x

Bits error versus y

Bits error versus z

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[x + \frac{y - x}{z}\]
  2. Using strategy rm

  3. Applied div-sub0.0

    \[\leadsto x + \color{blue}{\left(\frac{y}{z} - \frac{x}{z}\right)}\]

  4. Applied associate-+r-0.0

    \[\leadsto \color{blue}{\left(x + \frac{y}{z}\right) - \frac{x}{z}}\]

  5. Final simplification0.0

    \[\leadsto \left(x + \frac{y}{z}\right) - \frac{x}{z}\]

Reproduce

herbie shell --seed 2020057 +o rules:numerics
(FPCore (x y z)
  :name "Statistics.Sample:$swelfordMean from math-functions-0.1.5.2"
  :precision binary64
  (+ x (/ (- y x) z)))