Average Error: 0.0 → 0.0
Time: 1.1s
Precision: binary64
\[2^{x + 1} - 2^{pi \cdot x}\]
↓
\[2^{x + 1} - 2^{pi \cdot x}\]
2^{x + 1} - 2^{pi \cdot x}
↓
2^{x + 1} - 2^{pi \cdot x}
double code(double x, double pi) {
	return ((double) (((double) exp2(((double) (x + 1.0)))) - ((double) exp2(((double) (pi * x))))));
}
↓
double code(double x, double pi) {
	return ((double) (((double) exp2(((double) (x + 1.0)))) - ((double) exp2(((double) (pi * x))))));
}

Error

Bits error versus x

Bits error versus pi

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[2^{x + 1} - 2^{pi \cdot x}\]

  2. Final simplification0.0

    \[\leadsto 2^{x + 1} - 2^{pi \cdot x}\]

Reproduce

herbie shell --seed 2020152 
(FPCore (x pi)
  :name "(- (exp2 (+ x 1)) (exp2 (* pi x)))"
  :precision binary64
  (- (exp2 (+ x 1.0)) (exp2 (* pi x))))