Difference of cultures? Re: Matrix manipulations Re: [Maxima] Size of a matrix

> Excuse me, but I was taught at my University that for a
> matrix M its submatrix contains rows i1,i2,... and columnt
> j1,j2,....

According to mathworld, a submatrix must be a contiguous subblock, not
containing arbitrary rows i1, i2, etc. but i1, i1+1, ... in.  Perhaps
there is no standard notation for a submatrix?  Still, though the Maxima
function submatrix subsumes the functionality of the block definition, I
agree that its syntax is not convenient.

> a minor of k-th order of a matrix is a determinant of a
> submatrix od size k...

Yes, and normally minor by itself (without an order specified) means
what Maxima writes as determinant(minor(m,i,j)).

So I agree that the terminology could be better.

      -s