Average Error: 0.0 → 0.0
Time: 1.3s
Precision: binary64
Cost: 320
\[\frac{x}{1 - x}\]
↓
\[\frac{x}{1 - x}\]
\frac{x}{1 - x}
↓
\frac{x}{1 - x}
(FPCore (x) :precision binary64 (/ x (- 1.0 x)))
↓
(FPCore (x) :precision binary64 (/ x (- 1.0 x)))
double code(double x) {
	return x / (1.0 - x);
}
↓
double code(double x) {
	return x / (1.0 - x);
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Alternatives

Alternative 1
Error1.3
Cost706
\[\begin{array}{l} \mathbf{if}\;x \leq -1.014489998475607:\\ \;\;\;\;-1\\ \mathbf{elif}\;x \leq 0.9960715189560951:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;-1\\ \end{array}\]
Alternative 2
Error31.3
Cost64
\[-1\]
Alternative 3
Error61.3
Cost64
\[0\]
Alternative 4
Error62.3
Cost64
\[1\]

Error

Derivation

  1. Initial program 0.0

    \[\frac{x}{1 - x}\]

  2. Simplified0.0

    \[\leadsto \color{blue}{\frac{x}{1 - x}}\]

  3. Final simplification0.0

    \[\leadsto \frac{x}{1 - x}\]

Reproduce

herbie shell --seed 2021044 
(FPCore (x)
  :name "Numeric.Integration.TanhSinh:nonNegative from integration-0.2.1"
  :precision binary64
  (/ x (- 1.0 x)))