On Feb 22, 2008, at 15:55, Travis E. Oliphant wrote: >> ColumnVector, and RowVector. It would work like this: >> >> m = Matrix([[1, 2], [3, 4]]) >> >> m[0, :] --> ColumnVector([1, 3]) >> m[:, 0] --> RowVector([1, 2]) >> > These seem backward to me. I would think that m[0,:] would be the > RowVector([1,2]) and m[:,0] be the ColumnVector([1,3]).
Right. > What is m[0] in this case? The same as m[0, :]? Yes. >> However, the matrix implementation in Numeric was inspired by Matlab, >> where everything is a matrix. But as I said before, Python is not >> Matlab. > It should be kept in mind, however, that Matlab's matrix object is > used > successfully by a lot of people and should not be dismissed as > irrelevant. Matlab's approach is fine for Matlab, of course. All I am saying is that it is a misfit for Python. Just like 1-based indexing is used successfully by lots of Fortran programmers, but would be an eternal source of confusion if it were introduced for a specific container object in Python. Konrad. _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
