§A¥i¥H¥ýºâ¥XABªºªø«× = 8®Ú¸¹2
µM«á¨D¥X AC ¡G CB = 2 ¡G 8®Ú¸¹2 - 2
¦A¥Î "¤ÀÂI¤½¦¡" ¨DCÂI¡A³o¼Ë¤ñ¸û³æ¯Â¡A¤£»Ýn¥Î¨ì ¤T¨¤¨ç¼Æ
CÂI§¤¼Ð¡G¡]AÂIX§¤¼Ð+¶ZÂ÷*Cos¨¤«×¡AAÂIY§¤¼Ð+¶ZÂ÷*sin¨¤«×)
C ÂI®y¼Ð (X,Y) ¬°
X = x1 + |AC|(x2-x1)/|AB| = x1 + |AC|cos(£c)¡A
Y = y1 + |AC|(y2-y1)/|AB| = y1 + |AC|sin(£c)¡A
¨ä¤¤£c¬°ª½½u AB »P X ¶bªº§¨¨¤¡C
note999 ¼g¨ì:
´¿¦bºô¸ô¤W¬Ý¨ì¤@Ó¤½¦¡
CÂI§¤¼Ð¡G¡]AÂIX§¤¼Ð+¶ZÂ÷*Cos¨¤«×¡AAÂIY§¤¼Ð+¶ZÂ÷*sin¨¤«×¡^
¦ýÅçÃÒ°_¨Ó¦n¹³¬O¿ùªº