There are a lot of options of assigning to matrices with scalars, vectors, or choosing the way sparse matrices are filled. The default behavior though will do what you normally expect.

matrix<double> A(3,3);
A <<= 0, 1, 2,
     3, 4, 5,
     6, 7, 8;

or like:

A <<= 0, 1, 2,
     3, 4, 5,
     a;

(with "a" a 3-vector).

I wanted to write some documentation but I think the examples and tests expose almost all the features of the assignment functionality.

On Mar 29, 2011, at 6:46 PM, Oscar Vargas wrote:

It's the first time I use uBLAS, and I want to know the right way to initialize a matrix.

Example:
| 3 2|
M = | 1 5|
| 3 4|

How can I create such a matrix?

For example, in Matlab, you can type:
>> M = [3, 2; 1, 5; 3, 4]

I haven't found documentation for something as simple as that!!! I need help!
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