Average Error: 0.3 → 0
Time: 640.0ms
Precision: 64
\[d \cdot 10 + d \cdot 20\]
↓
\[d \cdot 30\]
d \cdot 10 + d \cdot 20
↓
d \cdot 30
double f(double d) {
        double r11221198 = d;
        double r11221199 = 10.0;
        double r11221200 = r11221198 * r11221199;
        double r11221201 = 20.0;
        double r11221202 = r11221198 * r11221201;
        double r11221203 = r11221200 + r11221202;
        return r11221203;
}
↓
double f(double d) {
        double r11221204 = d;
        double r11221205 = 30.0;
        double r11221206 = r11221204 * r11221205;
        return r11221206;
}

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

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

  3. Final simplification0

    \[\leadsto d \cdot 30\]

Reproduce

herbie shell --seed 2019168 +o rules:numerics
(FPCore (d)
  :name "FastMath test1"

  :herbie-target
  (* d 30)

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