exacity / exacity/deeplearningbook-chinese

2.4 线性相关和生成子空间 ,关于方程组的解

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首先感谢你们的翻译,这里我提一个疑点:
For A−1 to exist, equation 2.11 must have exactly one solution for every value of b.
It is also possible for the system of equations to have no solutions or infinitely many solutions for some values of b.

如果逆矩阵 A−1存在,那么式2.11肯定对于每一个向量b恰好存在一个解。
但是,对于方程组而言,对于向量b的某些值,有可能不存在解,或者存在无限多个解。

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方程组的解的情况,应该有3种:无解,1个解,无数个解。
从翻译来看,感觉无法直观的得到这个信息(还是我理解问题?)
而原文里的also则表达了这种意思。

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