I Element-wise square root of a vector notation?

Joes12
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What is the notation for element-wise square root of a vector or matrix?
What is the notation to show element-wise square root of a vector or matrix?
 
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Joes12 said:
Summary: What is the notation for element-wise square root of a vector or matrix?

What is the notation to show element-wise square root of a vector or matrix?
##(\sqrt{v_k})_{k\in I}\, , \,(\sqrt{a_{ij}})_{i\in I,\,j\in J}##
 
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The world of 2\times 2 complex matrices is very colorful. They form a Banach-algebra, they act on spinors, they contain the quaternions, SU(2), su(2), SL(2,\mathbb C), sl(2,\mathbb C). Furthermore, with the determinant as Euclidean or pseudo-Euclidean norm, isu(2) is a 3-dimensional Euclidean space, \mathbb RI\oplus isu(2) is a Minkowski space with signature (1,3), i\mathbb RI\oplus su(2) is a Minkowski space with signature (3,1), SU(2) is the double cover of SO(3), sl(2,\mathbb C) is the...
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