Singular Manual: matrix

> | ## 4.11 matrix Objects of type matrix are matrices with polynomial entries. Like polynomials they can only be defined or accessed with respect to a basering. In order to compute with matrices having integer or rational entries, define a ring with characteristic 0 and at least one variable. A matrix can be multiplied by and added to a poly; in this case the polynomial is converted into a matrix of the right size with the polynomial on the diagonal. If A is a matrix then the assignment `module M=A;` or `module M=module(A);` creates a module generated by the columns of A. Note that the trailing zero columns of A may be deleted by module operations with M.
> 4.11.1 matrix declarations |  |
> 4.11.2 matrix expressions |  |
> 4.11.3 matrix type cast |  |
> 4.11.4 matrix operations |  |
> 4.11.5 matrix related functions |  |

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