function y = dumbfun(x, z) % DUMBFUN An example Matlab function. % % Y = DUMBFUN(X,Z) doesn't do much. The Z parameter is optional % and should either be a scalar or equal in size to X. % % By Gary P. Scavone, McGill University, 2004. if nargin == 1 z = 0; end if numel(z) ~= 1 && max(size(z) ~= size(x)) error('Parameter Z size error.'); end y = 0.5.*x + z;
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