uscslsDeriv function

double uscslsDeriv(
  1. double x
)

Implementation

double uscslsDeriv(double x) {
  if (x >= 1.6) return 0.065;
  if (x > -0.8) return -0.375 * x * x + 0.25 * x + 0.625;
  return 0.185;
}