Important: The linalg package has been deprecated. Use the superseding command LinearAlgebra[Copy], instead.

- For information on migrating linalg code to the new packages, see examples/LinearAlgebraMigration.

The function copyinto(A, B, m, n) copies the entries of the matrix A into the matrix B beginning at index position $\left[m\,n\right]$, so $B_{m,n}$ is assigned $A_{1,1}$. This function and linalg[extend] are used to create new matrices from old ones.

The command with(linalg,copyinto) allows the use of the abbreviated form of this command.

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

$A≔\mathrm{matrix}\left(2\,2\,\left[1\,2\,3\,4\right]\right)$

$A≔\left[\begin{array}{cc}1& 2\\ 3& 4\end{array}\right]$

$B≔\mathrm{extend}\left(A\,2\,2\,0\right)$

$B≔\left[\begin{array}{cccc}1& 2& 0& 0\\ 3& 4& 0& 0\\ 0& 0& 0& 0\\ 0& 0& 0& 0\end{array}\right]$

$\mathrm{copyinto}\left(A\,B\,3\,3\right)$

$\left[\begin{array}{cccc}1& 2& 0& 0\\ 3& 4& 0& 0\\ 0& 0& 1& 2\\ 0& 0& 3& 4\end{array}\right]$