function r = uplus(p)
%UMINUS: this function applies a unary minus to the x, y, and z values of the structures that I use in
% the FVtool.
%
% SYNOPSIS:
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% PARAMETERS:
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% RETURNS:
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% EXAMPLE:
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% SEE ALSO:
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% Copyright (c) 2012-2016 Ali Akbar Eftekhari
% See the license file

r=p;
