C++ (Cpp) gsl_sf_gegenpoly_n_e Examples

Example #1

File: sf_gegenbauer.c Project: AbhimanyuAryan/rb-gsl

static VALUE rb_gsl_sf_gegenpoly_n_e(VALUE obj, VALUE n, VALUE lambda, VALUE x)
{
  gsl_sf_result *rslt = NULL;
  VALUE v;
  // local variable "status" declared and set, but never used
  //int status;
  CHECK_FIXNUM(n);
  Need_Float(lambda); Need_Float(x);
  v = Data_Make_Struct(cgsl_sf_result, gsl_sf_result, 0, free, rslt);
  /*status =*/ gsl_sf_gegenpoly_n_e(FIX2INT(n), NUM2DBL(lambda), NUM2DBL(x), rslt);

  return v;
}

Example #2

File: gsl_wrap.cpp Project: CaptainSifff/tr29124_test

/// Gegenbauer polynomials.
double
gegenpoly_n(unsigned int n, double lambda, double x)
{
  gsl_sf_result result;
  int stat = gsl_sf_gegenpoly_n_e(n, lambda, x, &result);
  if (stat != GSL_SUCCESS)
    {
      std::ostringstream msg("Error in gegenpoly_n:");
      msg << " n=" << n << " lambda=" << lambda << " x=" << x;
      throw std::runtime_error(msg.str());
    }
  else
    return result.val;
}