Average Error: 0.0 → 0.0
Time: 781.0ms
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 r2432043 = 2.0;
        double r2432044 = x;
        double r2432045 = exp(r2432044);
        double r2432046 = -r2432044;
        double r2432047 = exp(r2432046);
        double r2432048 = r2432045 + r2432047;
        double r2432049 = r2432043 / r2432048;
        return r2432049;
}
↓
double f(double x) {
        double r2432050 = 2.0;
        double r2432051 = x;
        double r2432052 = exp(r2432051);
        double r2432053 = -r2432051;
        double r2432054 = exp(r2432053);
        double r2432055 = r2432052 + r2432054;
        double r2432056 = r2432050 / r2432055;
        return r2432056;
}

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 2019172 
(FPCore (x)
  :name "Hyperbolic secant"
  (/ 2.0 (+ (exp x) (exp (- x)))))