Average Error: 0.0 → 0.0
Time: 7.2s
Precision: 64
\[\frac{2}{e^{x} + e^{-x}}\]
↓
\[\frac{2}{e^{x} + e^{-x}}\]
\frac{2}{e^{x} + e^{-x}}
↓
\frac{2}{e^{x} + e^{-x}}
double f(double x) {
        double r2094358 = 2.0;
        double r2094359 = x;
        double r2094360 = exp(r2094359);
        double r2094361 = -r2094359;
        double r2094362 = exp(r2094361);
        double r2094363 = r2094360 + r2094362;
        double r2094364 = r2094358 / r2094363;
        return r2094364;
}
↓
double f(double x) {
        double r2094365 = 2.0;
        double r2094366 = x;
        double r2094367 = exp(r2094366);
        double r2094368 = -r2094366;
        double r2094369 = exp(r2094368);
        double r2094370 = r2094367 + r2094369;
        double r2094371 = r2094365 / r2094370;
        return r2094371;
}

Error

Bits error versus x

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[\frac{2}{e^{x} + e^{-x}}\]

  2. Final simplification0.0

    \[\leadsto \frac{2}{e^{x} + e^{-x}}\]

Reproduce

herbie shell --seed 2019171 
(FPCore (x)
  :name "Hyperbolic secant"
  (/ 2.0 (+ (exp x) (exp (- x)))))