pyexpint/expint.cpp
/**
 * Asymptotic expansion or Laguerre series for large v
 */
Asymptotic expansion or Laguerre series for large v
Asymptotic expansion or Laguerre series for large v
double expint_large_v(const double v, const double x) 
{
  int iter;
  if (x < 5.0) 
  {
    iter = use_expint_asymp_v(v, x);
    if (iter)
      return expint_asymp_v(v, x, iter);
  } 
  return expint_laguerre_series(v, x);
}
double expint_large_v ( const double v , const double x ) { int iter ; if ( x < 5.0 ) { iter = use_expint_asymp_v ( v , x ) ; if ( iter ) return expint_asymp_v ( v , x , iter ) ; } return expint_laguerre_series ( v , x ) ; }
Asymptotic expansion or Laguerre series for large v
Asymptotic expansion or Laguerre series for large v
// fixed and small x and large v