MATLAB符号运算​不能化简（即log(​exp(x))不能继​续化简）。

19 May 2023
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Updated 19 May 2023
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MATLAB中 log函数指以自然对数e为底的对数运算，而exp顾名思义就是指数运算，现在在MATALB中做符号运算，设x为一符号变量，首先测试exp(log(x))，完全OK，会得到x，但是奇怪的是输入log(exp(x))后得到的仍然是log(exp(x))，而不是x，有点令人费解，有人知道是咋回事么。这难道是因为MATLAB本来就是这么样定义的？

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syms h t real
就能把h和t定义成实数域的符号变量了

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