Average Error: 0.0 → 0.0
Time: 10.9s
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 r8506796 = 2.0;
        double r8506797 = x;
        double r8506798 = exp(r8506797);
        double r8506799 = -r8506797;
        double r8506800 = exp(r8506799);
        double r8506801 = r8506798 + r8506800;
        double r8506802 = r8506796 / r8506801;
        return r8506802;
}
↓
double f(double x) {
        double r8506803 = 2.0;
        double r8506804 = x;
        double r8506805 = exp(r8506804);
        double r8506806 = -r8506804;
        double r8506807 = exp(r8506806);
        double r8506808 = r8506805 + r8506807;
        double r8506809 = r8506803 / r8506808;
        return r8506809;
}

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 2019124 
(FPCore (x)
  :name "Hyperbolic secant"
  (/ 2 (+ (exp x) (exp (- x)))))