If you use SquareMatrix, then it is clear, what the identity matrix is,
namely 1. So one can just create such a matrix and then convert it to
the generic Matrix domain. But maybe, you actually like SquareMatrix
even better.
(1) -> 1$SquareMatrix(3,Integer)::Matrix(Integer)
+1 0 0+
| |
(1) |0 1 0|
| |
+0 0 1+
Type:
Matrix(Integer)
Ralf
On 08/11/2018 07:24 PM, [email protected] wrote:
> Hi,
>
> is there a command / "shortcut" for creating the identity matrix of a certain
> size?
> Or is it necessary to use the matrix()-command and set all the values on the
> diagoanl to one and all others to zero?
>
> Would be much easier, if there is something like identitiymatrix(3),
> which would make a 3x3 identity-matrix.
>
> any ideas?
>
> TIA,
> pan.
>
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