format?long;
%syms?a?b?c?d?e?f?g?h?i?j?k?l?m?n?o?p?q?r?s?t?u?v?w?x?y?z?max?mid?min;
disp（‘此方法為牛頓迭代法！！！‘）;
p=input（‘請輸入函數f:‘）;
x0=input（‘請輸入初值：‘）;
%max=input（‘請輸入區間的上限：?‘）;
%min=