Average Error: 0.0 → 0.0
Time: 22.9s
Precision: 64
\[56789 \le a \le 98765 \land 0 \le b \le 1 \land 0 \le c \le 0.0016773 \land 0 \le d \le 0.0016773\]
\[a \cdot \left(\left(b + c\right) + d\right)\]
↓
\[\left(\left(b + c\right) + d\right) \cdot a\]
a \cdot \left(\left(b + c\right) + d\right)
↓
\left(\left(b + c\right) + d\right) \cdot a
double f(double a, double b, double c, double d) {
        double r7478059 = a;
        double r7478060 = b;
        double r7478061 = c;
        double r7478062 = r7478060 + r7478061;
        double r7478063 = d;
        double r7478064 = r7478062 + r7478063;
        double r7478065 = r7478059 * r7478064;
        return r7478065;
}
↓
double f(double a, double b, double c, double d) {
        double r7478066 = b;
        double r7478067 = c;
        double r7478068 = r7478066 + r7478067;
        double r7478069 = d;
        double r7478070 = r7478068 + r7478069;
        double r7478071 = a;
        double r7478072 = r7478070 * r7478071;
        return r7478072;
}

Error

Bits error versus a

Bits error versus b

Bits error versus c

Bits error versus d

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.0
Target0.0
Herbie0.0
\[a \cdot b + a \cdot \left(c + d\right)\]

Derivation

  1. Initial program 0.0

    \[a \cdot \left(\left(b + c\right) + d\right)\]

  2. Final simplification0.0

    \[\leadsto \left(\left(b + c\right) + d\right) \cdot a\]

Reproduce

herbie shell --seed 2019124 +o rules:numerics
(FPCore (a b c d)
  :name "Expression, p14"
  :pre (and (<= 56789 a 98765) (<= 0 b 1) (<= 0 c 0.0016773) (<= 0 d 0.0016773))

  :herbie-target
  (+ (* a b) (* a (+ c d)))

  (* a (+ (+ b c) d)))