å
éå¶çº§æ°é常ç¨æ¥è¡¨ç¤ºâå¨æå½æ°âï¼èä¸æ¯è¦æ»¡è¶³å¯ç§¯æ¡ä»¶çå¨æå½æ°ã
å®çï¼æ»¡è¶³çå©èµ«éæ¡ä»¶çå¨æå½æ°è¡¨ç¤ºæçå
éå¶çº§æ°é½æ¶æã
çå©èµ«éæ¡ä»¶ï¼å¨ä»»ä½å¨æå
ï¼y(x)é¡»ç»å¯¹å¯ç§¯ï¼å¨ä»»ä¸æéåºé´ä¸ï¼y(x)åªè½åæé个æ大å¼ææå°å¼
å¦ææ¯éå¨æå½æ°ï¼å¯ä»¥è§ä¸ºå¨ææ 穷大ï¼é£å°±æ¼å为â
å
éå¶åæ¢âäºãå°±ä¸æ¯å
éå¶çº§æ°äºã
æ以
å
ç«å¶çº§æ°ä¸æ¯ä»ä¹å½æ°é½è½è¡¨ç¤ºçã