matlab 问题 求大神>> ['t' num2str(1) num2str(2)]ans =t12>> a=[sym(['t' num2str(1) num2str(2)])-2 x+3] a = [ t12 - 2, x + 3] >> solve(a)ans = t12: [1x1 sym] x: [1x1 sym]>> a.['t' num2str(1) num2str(2)] a.['t' num2str(1) num2str(2)] |E
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![matlab 问题 求大神>> ['t' num2str(1) num2str(2)]ans =t12>> a=[sym(['t' num2str(1) num2str(2)])-2 x+3] a = [ t12 - 2, x + 3] >> solve(a)ans = t12: [1x1 sym] x: [1x1 sym]>> a.['t' num2str(1) num2str(2)] a.['t' num2str(1) num2str(2)] |E](/uploads/image/z/6111945-9-5.jpg?t=matlab+%E9%97%AE%E9%A2%98+%E6%B1%82%E5%A4%A7%E7%A5%9E%3E%3E+%5B%27t%27+num2str%281%29+num2str%282%29%5Dans+%3Dt12%3E%3E++a%3D%5Bsym%28%5B%27t%27+num2str%281%29+num2str%282%29%5D%29-2+x%2B3%5D+a+%3D+%5B+t12+-+2%2C+x+%2B+3%5D+%3E%3E+solve%28a%29ans+%3D+++++t12%3A+%5B1x1+sym%5D+++++++x%3A+%5B1x1+sym%5D%3E%3E+a.%5B%27t%27+num2str%281%29+num2str%282%29%5D+a.%5B%27t%27+num2str%281%29+num2str%282%29%5D++%7CE)
matlab 问题 求大神>> ['t' num2str(1) num2str(2)]ans =t12>> a=[sym(['t' num2str(1) num2str(2)])-2 x+3] a = [ t12 - 2, x + 3] >> solve(a)ans = t12: [1x1 sym] x: [1x1 sym]>> a.['t' num2str(1) num2str(2)] a.['t' num2str(1) num2str(2)] |E
matlab 问题 求大神
>> ['t' num2str(1) num2str(2)]
ans =
t12
>> a=[sym(['t' num2str(1) num2str(2)])-2 x+3]
a =
[ t12 - 2, x + 3]
>> solve(a)
ans =
t12: [1x1 sym]
x: [1x1 sym]
>> a.['t' num2str(1) num2str(2)]
a.['t' num2str(1) num2str(2)]
|
Error: Unbalanced or unexpected parenthesis or bracket.
为什么最后一行输入有错
matlab 问题 求大神>> ['t' num2str(1) num2str(2)]ans =t12>> a=[sym(['t' num2str(1) num2str(2)])-2 x+3] a = [ t12 - 2, x + 3] >> solve(a)ans = t12: [1x1 sym] x: [1x1 sym]>> a.['t' num2str(1) num2str(2)] a.['t' num2str(1) num2str(2)] |E
a.['t' num2str(1) num2str(2)]
一、a后面那个点什么意思?没有这样表示的,
二、a[、、、] 也没有这样表示的,这个公式的目的是什么
三 ['t' num2str(1) num2str(2)]=t12,那你a.t12真不明白是干嘛的 注: a是符号数组