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From: "Tim Davis" <davis@cise.ufl.edu>
Newsgroups: comp.soft-sys.matlab
Subject: Re: why do you contribute to File Exchange?
Date: Sat, 27 Oct 2007 17:36:15 +0000 (UTC)
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There is another benefit I forgot to mention.

Suppose I write a code that I intend just to use for myself.
 It would take too much to turn it into a commercial
product.  I may be an academic, or in industry, either one.

If I keep the code to myself, only I benefit from it.  Also,
however, I'm the only one who can improve it.

If I post it as open source then others can benefit, but I
can benefit too.  I get others to use the code who find it
useful, and then they contribute to the code.  In the end,
for sharing my code, I get a better code that I can use myself.