linalg::matdim -- dimension of a
matrix
Introductionlinalg::matdim(A) returns the dimension of
the matrix A, i.e., the number of rows and columns of
A.
Call(s)linalg::matdim(A)
ParametersA |
- | an m x n matrix of a domain of category
Cat::Matrix |
Returnsthe list [m, n], where m is the number of
rows and n is the number of columns of A.
Related
Functionslinalg::vecdim,
linalg::ncols, linalg::nrows
Detailslinalg::matdim is an interface function for the method
"matdim" of the matrix domain of A, i.e.,
instead of linalg::matdim(A) one may call
A::dom::matdim(A) directly.
Example
1The dimension of the matrix:
>> A := matrix([[1, 2, 3, 4], [3, 1, 4], [5, 6]])
+- -+
| 1, 2, 3, 4 |
| |
| 3, 1, 4, 0 |
| |
| 5, 6, 0, 0 |
+- -+
can be determined by:
>> linalg::matdim(A)
[3, 4]
linalg::dimen