Average Error: 0.1 → 0.1
Time: 859.0ms
Precision: binary64
\[\left(\left(x + x \cdot x\right) + \left(x \cdot x\right) \cdot x\right) - 1\]
↓
\[x + \left(x \cdot \left(x + x \cdot x\right) - 1\right)\]
\left(\left(x + x \cdot x\right) + \left(x \cdot x\right) \cdot x\right) - 1
↓
x + \left(x \cdot \left(x + x \cdot x\right) - 1\right)
double code(double x) {
	return ((double) (((double) (((double) (x + ((double) (x * x)))) + ((double) (((double) (x * x)) * x)))) - 1.0));
}
↓
double code(double x) {
	return ((double) (x + ((double) (((double) (x * ((double) (x + ((double) (x * x)))))) - 1.0))));
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.1

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

  2. Simplified0.1

    \[\leadsto \color{blue}{x + \left(x \cdot \left(x + x \cdot x\right) - 1\right)}\]

  3. Final simplification0.1

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

Reproduce

herbie shell --seed 2020153 
(FPCore (x)
  :name "(- (+ (+ x (* x x)) (* (* x x) x)) 1)"
  :precision binary64
  (- (+ (+ x (* x x)) (* (* x x) x)) 1.0))