【摘要】 在微积分与高等数学中,用洛必达法则求一个函数的极限,方法简便,易操作,但对于该法则的多种情况的证明,现行教材有不足之处,本文作一个补充。更多还原

【Abstract】 In calculus and higher mathematics,the L’ Hospital Rule is used to compute functional limit,easy to operate.However,defect exists in current teaching materials in demonstrating the rule under various circumstances,the paper presents a supplement.更多还原