如何在每列中获取具有相同元素的特殊类型的矩阵的inv [英] How to get inv of special type of Matrix with same elements in each column

问题描述

我有一个矩阵B，如下所示.我们如何使用MATLAB获得inv(B)?

I have a matrix B, as shown below. How can we get inv(B) using MATLAB?

B =[ 1.7511, 0.1891, -1.3523;
     1.7511, 0.1891, -1.3523;
     1.7511, 0.1891, -1.3523 ];

推荐答案

如果列是 invertible ，则矩阵是 invertible .线性独立的.这意味着列a不能用列b和c的函数表示，例如.通过a = 2*b+c.在您的情况下，所有列都是相同的，即a = b = c，因此它们不是线性独立的，并且矩阵是不可逆的.

A matrix is invertible, if the columns are linearly independent. This means that a column a can not be expressed in function of columns b and c, e.g. by a = 2*b+c. In your case, all columns are identical, i.e. a = b = c, so they are not linearly independent, and your matrix is not invertible.

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