The sqrt(x) function computes the square root of x.

The sqrt(M) function computes the element-wise square root of M.  The result, R, is formed as R[i,j] = sqrt(M[i,j]).

The realsqrt(x) function is similar to sqrt(x) but requires that any numbers in the input be real and nonnegative.

$\mathrm{with}\left(\mathrm{MTM}\right)\:$

$M≔\mathrm{Matrix}\left(2\,3\,'\mathrm{fill}'=-3.6\right)\:$

$\mathrm{sqrt}\left(M\right)$

$\left[\begin{array}{ccc}1.897366596\mathrm{I}& 1.897366596\mathrm{I}& 1.897366596\mathrm{I}\\ 1.897366596\mathrm{I}& 1.897366596\mathrm{I}& 1.897366596\mathrm{I}\end{array}\right]$

The MTM[sqrt] and MTM[realsqrt] commands were updated in Maple 2021.

The 'realsqrt' option was introduced in Maple 2021.

For more information on Maple 2021 changes, see Updates in Maple 2021.