Cannot sample enough valid points. (more)

\[x \lt 10^{5}\]
\[\frac{\sqrt{x - 1}}{x + 1} - \frac{\sqrt{x + 1}}{x - 1}\]
\frac{\sqrt{x - 1}}{x + 1} - \frac{\sqrt{x + 1}}{x - 1}
double f(double x) {
        double r57428 = x;
        double r57429 = 1.0;
        double r57430 = r57428 - r57429;
        double r57431 = sqrt(r57430);
        double r57432 = r57428 + r57429;
        double r57433 = r57431 / r57432;
        double r57434 = sqrt(r57432);
        double r57435 = r57434 / r57430;
        double r57436 = r57433 - r57435;
        return r57436;
}