Average Error: 0.3 → 0
Time: 874.0ms
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 r6600303 = d;
        double r6600304 = 10.0;
        double r6600305 = r6600303 * r6600304;
        double r6600306 = 20.0;
        double r6600307 = r6600303 * r6600306;
        double r6600308 = r6600305 + r6600307;
        return r6600308;
}
↓
double f(double d) {
        double r6600309 = 30.0;
        double r6600310 = d;
        double r6600311 = r6600309 * r6600310;
        return r6600311;
}

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 2019163 
(FPCore (d)
  :name "FastMath test1"

  :herbie-target
  (* d 30)

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