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求函数零点近似解的一种计算方法——二分法,到底何时“终止计算”?对照人教版《数学必修1》(B版)2007年4月第3版2007年6月第1次印刷的第73页与人教版《数学必修1》(B版)2007年4月第3版2014年6月第8次印刷的第73页,会发现写法上发生了“微妙”变化.前者为当区间端点按照给定的小数“所取的近似值相同”时,这个相同的近似值就是函数y=f(x)的近似零点,计算终止.后者改为当区间的长度“不大于
A method to calculate the approximate solution of the zero function of the function - the dichotomy, in the end Page 73 of the 1st printing and PEP ”Mathematical Compulsory 1“ (B edition) April 2007 3rd edition The 8th printing of the June 2014 page 73, will find that ”subtle “Change. When the former is the same as the approximate value obtained when the end point of the interval is given by the given decimal point, the same approximate value is the approximate zero point of the function y=f(x). The calculation is terminated. The latter is changed to the interval. Length ” not more than