On Feb 2, 2006, at 9:00 AM, Herbert Voss wrote:

Paul Smith wrote:
This may be a bit out of topic. I have a matrix of ones and zeros with
which I would like to produce a picture in such a way that the ones
would be represented in black, say, and the zeros in yellow. Does
somebody know of a program (for Linux) to create my picture?

what kind of matrix?

Matlab will do that with the 'spy' command

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