else d < 0
{ cout << " Roots ▁ are ▁ complex ▁ STRNEWLINE " ; cout << - ( double ) b / ( 2 * a ) << " ▁ + ▁ i " << sqrt_val << " STRNEWLINE " << - ( double ) b / ( 2 * a ) << " ▁ - ▁ i " << sqrt_val ; } }