Average Error: 0.3 → 0
Time: 1.2s
Precision: 64
\[d \cdot 10 + d \cdot 20\]
↓
\[30 \cdot d\]
d \cdot 10 + d \cdot 20
↓
30 \cdot d
double f(double d) {
        double r4323980 = d;
        double r4323981 = 10.0;
        double r4323982 = r4323980 * r4323981;
        double r4323983 = 20.0;
        double r4323984 = r4323980 * r4323983;
        double r4323985 = r4323982 + r4323984;
        return r4323985;
}
↓
double f(double d) {
        double r4323986 = 30.0;
        double r4323987 = d;
        double r4323988 = r4323986 * r4323987;
        return r4323988;
}

Error

Bits error versus d

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.3
Target0
Herbie0
\[d \cdot 30\]

Derivation

  1. Initial program 0.3

    \[d \cdot 10 + d \cdot 20\]

  2. Simplified0

    \[\leadsto \color{blue}{30 \cdot d}\]

  3. Final simplification0

    \[\leadsto 30 \cdot d\]

Reproduce

herbie shell --seed 2019153 
(FPCore (d)
  :name "FastMath test1"

  :herbie-target
  (* d 30)

  (+ (* d 10) (* d 20)))