At 00:10 12/11/04 +0100, karczma wrote:

But it was MUCH more important to repeat the same sequence, e.g., after making fast some nice fractal sketch, I relaunched the program with bigger size/precision, but exploiting the same random sequence. I repeat, such is my philosophy.

I agree. I've used similar randomization techniques for software testing, having similar requirements for repeatability. (E.g., finding a seed that generates an error after several million iterations, with a specific iteration number, and then re-running the test to enable tracing at exactly the required iteration number.) #g ------------ Graham Klyne For email: http://www.ninebynine.org/#Contact