public static double tanh(double x) {
if (x == 0.0) {
return x;
} else if (Double.isInfinite(x)) {
return signum(x);
} else {
double e2x = NativeMath.exp(2 * x);
return (e2x - 1) / (e2x + 1);
}
}
public static double sinh(double x) {
return x == 0 ? x : (NativeMath.exp(x) - NativeMath.exp(-x)) / 2;
}
public static double exp(double x) {
return NativeMath.exp(x);
}
public static double expm1(double d) {
return d == 0 ? d : NativeMath.exp(d) - 1;
}
public static double cosh(double x) {
return (NativeMath.exp(x) + NativeMath.exp(-x)) / 2;
}
