ç´æµåçµæºå±ç£æ¹å¼ä¸ºä»å±å¼ï¼ç´æµçµå¨æºçå±ç£æ¹å¼æ¯èªå±å¼ã
1ãç´æµçµæºä»å±ï¼å±ç£ç»ç»ä¸çµæ¢ç»ç»æ èæ¥å ³ç³»ï¼èç±å ¶ä»ç´æµçµæºå¯¹å±ç£ç»ç»ä¾çµçç´æµçµæºç§°ä¸ºä»å±ç´æµçµæºï¼æ¥çº¿å¦ä¸å¾æ示ã
ç´æµçµæºèªå±ï¼å为并å±ã串å±åå¤å±ã
ï¼1ï¼å¹¶å±ï¼ç´æµçµæºçå±ç£ç»ç»ä¸çµæ¢ç»ç»ç¸å¹¶èï¼æ¥çº¿å¦ä¸å¾æ示ãä½ä¸ºå¹¶å±åçµæºæ¥è¯´ï¼æ¯çµæºæ¬èº«ååºæ¥ç端çµå为å±ç£ç»ç»ä¾çµã
ï¼2ï¼ã串å±ï¼ç´æµçµæºçå±ç£ç»ç»ä¸çµæ¢ç»ç»ä¸²èåï¼åæ¥äºç´æµçµæºï¼æ¥çº¿å¦ä¸å¾æ示ãè¿ç§ç´æµçµæºçå±ç£çµæµå°±æ¯çµæ¢çµæµã
ï¼3ï¼ãå¤å±ç´æµçµæºæ并å±å串å±ä¸¤ä¸ªå±ç£ç»ç»ï¼æ¥çº¿å¦ä¸å¾æ示ãè¥ä¸²å±ç»ç»äº§ççç£éå¿ä¸å¹¶å±ç»ç»äº§ççç£éå¿æ¹åç¸å称为积å¤å±ãè¥ä¸¤ä¸ªç£éå¿æ¹åç¸åï¼å称为差å¤å±ã