ä¸ã设åæååé¢å¯¹çå¸åºéæ±ä¸ºP=a-Bqï¼åæ»æ¶çæ²çº¿TR=PQ=Aq-bQ²ï¼å¹³åæ¶çæ²çº¿AR=PQ/Q=P=a-bQï¼MR=dTR/Dq=a-2bï¼æ以å½åæååé¢ä¸´çéæ±æ²çº¿æ¯ç´çº¿æ¶ï¼å
¶è¾¹é
æ¶çæ²çº¿æ»æ¯ä½äºå¹³åæ¶çæ²çº¿çä¸é¢ï¼ä¸æçæ¯åè
çäºåãä»å ä½ä¸çï¼MRæ²çº¿å¹³åå¹³åæ¶çæ²çº¿ä¸çºµè½´åç´çº¿æ®µçä¸ç¹ã
äºã西æ¹ç»æµå¦å³è¢«è¿ç¨äºè¥¿æ¹å¸åºç»æµå½å®¶çç»æµå¦ï¼å³ç®åæ称çâ主æµç»æµå¦âï¼å ç¹å«æ³¨é对å¸åºæºå¶çç 究ï¼èåæå¸åºç»æµå¦ä¹ç§°ã以1776å¹´
äºå½Â·æ¯å¯ãå½å¯è®ºã çåºç为æ å¿ï¼ç»æµå¦åç»200å¤å¹´çé£é¨æ²§æ¡ãå¨è¿ä¸ªä¸é¿ä¸ççåå²è¿ç¨ä¸ï¼ä»äºå½Â·æ¯å¯ã大å«Â·æåå¾ãè¨ä¼ã
ç©åã马å°è¨æ¯ã
马æå°å°å¯æ©æ¯ã
ç±³å°é¡¿Â·å¼éå¾·æ¼ãè¨è°¬å°æ£®ãå¢å¡æ¯ãæ¯èæ ¼å©è¨ï¼ç»æµå¦å¤§å¸è¾åºï¼ä»å¤å
¸ç»æµå¦ãæ°å¤å
¸ç»æµå°
å¯æ©æ¯ä¸»ä¹ç»æµå¦ãæ°å¤å
¸å®è§ç»æµå¦åæ°å¯æ©æ¯ä¸»ä¹ç»æµå¦ï¼ç»æµå¦æµæ´¾æç«ãç¾è±é½æ¾ï¼ç¾å®¶äºé¸£ï¼å¸¦æ¥ç»æµå¦çä¸æåæ°ååå±ï¼ä»¥è´äºæç®ä¸æâç»æµå¦å¸å½âä¹ç§°ãä¸è¿°é®é¢å°±æ¯è¥¿æ¹ç»æµå¦ä¸æè¦ç 究çé®é¢ã