[问题] 请问for循环里能求方程的根吗？ - MATLAB爱好者论坛-LabFans.com

sunmeng82 · 2011-10-02, 11:14

f[T_] = Sin[m*T]
For[m = 2, m <= 2, m++,
Table[FindRoot[f[T], {T, 0.0001 + 1*i}], {i, 0, 10}];
z = Re[T /. %]; \[Lambda] = z]

如上例所示，我想在for循环里求方程的根，但是老提示我有错误{Sin[2 T]} is neither a list of replacement rules nor a valid \
dispatch table, and so cannot be used for replacing.

哪位高手能帮我解答一下？

2011-10-02, 11:14	#1
sunmeng82 初级会员注册日期: 2010-09-28 年龄: 43 帖子: 11 声望力: 15	请问for循环里能求方程的根吗？ f[T_] = Sin[mT] For[m = 2, m <= 2, m++, Table[FindRoot[f[T], {T, 0.0001 + 1i}], {i, 0, 10}]; z = Re[T /. %]; \[Lambda] = z] 如上例所示，我想在for循环里求方程的根，但是老提示我有错误{Sin[2 T]} is neither a list of replacement rules nor a valid \ dispatch table, and so cannot be used for replacing. 哪位高手能帮我解答一下？