adding matrices of strings

[William Park]

On Wed, Oct 04, 2000 at 04:43:21PM -0500, Louis Luangkesorn wrote:
> Is there a way to add matrices of strings?  In other words, if I have
> matrices A and B, whose elements are strings, can i add them so I get C
> = A + B where C[i,j] = concatonate(A[i,j], B[i,j])

Since string addition is concatenation (ie. 'a' + 'b' == 'ab'), your __add__
method should work, assuming you used '+' operator to define your addition.

> 
> It does not seem like the NumPy array accepts strings, and I was
> thinking about adding lists of lists together, but all I get is the set
> of lists in A with the lists in B.
> 
> the other thing I need to do is to take that matrix A, and pull a
> particular element from it (without removing that element like a
> a.pop(x) would do)

I don't get this.  What's wrong with A[i][j]?

> 
> Thanks

---William Park, Open Geometry Consulting