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

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

The function vectdim determines the dimension of the given vector.

If vectdim is given a vector v, then the dimension of (number of elements in) v is returned; if a list L is given to vectdim, then the number of elements in the list is returned.

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

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

$v≔\mathrm{vector}\left(\left[x\,y\,z\right]\right)$

$v≔\left[\begin{array}{ccc}x& y& z\end{array}\right]$

$\mathrm{vectdim}\left(v\right)$

$3$

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

$4$

$u≔\mathrm{vector}\left(2\right)$

$u≔\left[\begin{array}{cc}{\mathrm{`?`}}_1& {\mathrm{`?`}}_2\end{array}\right]$

$\mathrm{vectdim}\left(u\right)$

$2$