A question about $n\times n$ matrix

Asked Oct 14 '11 at 05:33

Active Oct 14 '11 at 05:33

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Possible Duplicate:
For every matrix $A\in M_{2}( \mathbb{C}) $ there's $X\in M_{2}( \mathbb{C})$ such that $X^2=A$?
Square root of a matrix

Let $A$ be $n\times n$ matrix on $\mathbb C $. Can I find $B$ such that $B^2=A$?
If I can , how do I construct $B$?

edited Apr 13 '17 at 12:20

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asked Oct 14 '11 at 05:33

Leitingok

http://math.stackexchange.com/questions/65227/square-root-of-a-matrix – jspecter Oct 14 '11 at 05:39
or http://math.stackexchange.com/questions/57292/for-every-matrix-a-in-m-2-mathbbc-theres-x-in-m-2-mathbbc-su – jspecter Oct 14 '11 at 05:39

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