éåć«ććä½ē½®ćØćć«ć®ć¼ćÆćåŗęŗé¢ććć®é«ć Ć éåćć§ę±ŗć¾ćć¾ććåćē©ä½ć§ććåŗęŗé¢ć®åćę¹ć«ćć£ć¦å¤ļ¼ē¹ć«ē¬¦å·ļ¼ćå¤ććć¾ććåŗęŗé¢ććäøćŖććć©ć¹ćäøćŖććć¤ćć¹ć§ćć
ćä½ J ć®ä½ē½®ćØćć«ć®ć¼ćęć¤ćććēććć«ćÆćć¾ćć©ććåŗęŗļ¼é«ć 0ļ¼ć«ćććć確čŖćć¾ćććć
å°é¢ć»ęŗć»å¤©äŗćŖć©ęå®ćććåŗęŗé¢ććęø¬ć£ćē©ä½ć®é«ćć«åƾććéåä½ē½®ćØćć«ć®ć¼ \(U\)ć
ä½ē½®ćØćć«ć®ć¼ćÆć絶対å¤ćć§ćÆćŖććåŗęŗé¢ććć®å·®ććåŗęŗé¢ćå¤ććć°å¤ćå¤ććććå·®ļ¼ä½ē½®ćØćć«ć®ć¼ć®å¤åéļ¼ćÆć©ć®åŗęŗć§ćåćć«ćŖćć