5:48 AM
First I thought that it might be good idea to use the tag (radicals) for such questions. But I see that this not agree with the tag-excerpt: "For questions involving radical numbers or expressions (i.e. expressions which involve $\sqrt[n]{\text{something}}$)."
So far I have ratagged only 3 questions. So it will not be much work to revert the changes, if we decide to doso.
1
I have the following matrix : $$ \mathbf A =\begin{bmatrix} 100 & 0 \\ 0 & 1 \\ \end{bmatrix}$$ I have to compute $ \mathbf A^{-1/2}$. So I need spectral decomposition, $$ \mathbf A = \mathbf P \mathbf \Lambda\mathbf P',$$ $\mathbf P$ be a matrix with normalized eigenvec...
14
True\False? For every matrix $A\in M_{2}( \mathbb{C}) $ there's $X\in M_{2}( \mathbb{C})$ such that $X^2=A$. I know that every complexed matrix has a Jordan form matrix $J$ such that $P^{-1}CP=J$, But it's not diagonalizable for sure. Thanks
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