Average Error: 0.0 → 0.0
Time: 1.0s
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 r1925018 = 2.0;
        double r1925019 = x;
        double r1925020 = exp(r1925019);
        double r1925021 = -r1925019;
        double r1925022 = exp(r1925021);
        double r1925023 = r1925020 + r1925022;
        double r1925024 = r1925018 / r1925023;
        return r1925024;
}
↓
double f(double x) {
        double r1925025 = 2.0;
        double r1925026 = x;
        double r1925027 = exp(r1925026);
        double r1925028 = -r1925026;
        double r1925029 = exp(r1925028);
        double r1925030 = r1925027 + r1925029;
        double r1925031 = r1925025 / r1925030;
        return r1925031;
}

Error

Bits error versus x

Try it out

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)))))