Thank you Yardanico and janAkali for your explanations but above all, for the examples (in Spain we say that a picture is worth a thousand words :-) ). Now I understand better.
Thank you Araq too, for your explanation. Best regards. Antonio F.S.
Thank you Yardanico and janAkali for your explanations but above all, for the examples (in Spain we say that a picture is worth a thousand words :-) ). Now I understand better.
Thank you Araq too, for your explanation. Best regards. Antonio F.S.