Average Error: 0.0 → 0.0

Time: 3.5s

Precision: 64

\[0.0 \le x \le 2\]

\[x + x \cdot x\]

↓

\[x \cdot x + x\]

x + x \cdot x

↓

x \cdot x + x

double f(double x) {
        double r5460554 = x;
        double r5460555 = r5460554 * r5460554;
        double r5460556 = r5460554 + r5460555;
        return r5460556;
}

↓

double f(double x) {
        double r5460557 = x;
        double r5460558 = r5460557 * r5460557;
        double r5460559 = r5460558 + r5460557;
        return r5460559;
}

Error

The X axis uses an exponential scale — Bits error versus `x`

Try it out

In
Out

Enter valid numbers for all inputs

Target

Original	0.0
Target	0.0
Herbie	0.0

\[\left(1 + x\right) \cdot x\]

Derivation

Initial program 0.0
\[x + x \cdot x\]
Final simplification0.0
\[\leadsto x \cdot x + x\]

Reproduce

herbie shell --seed 2019171 
(FPCore (x)
  :name "Expression 2, p15"
  :pre (<= 0.0 x 2.0)

  :herbie-target
  (* (+ 1.0 x) x)

  (+ x (* x x)))