approxeq.m

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function p = approxeq(a, b, tol)
% APPROXEQ Are a and b approximately equal (to within a specified tolerance)?
% p = approxeq(a, b, thresh)
% 'tol' defaults to 1e-3.
% p(i) = 1 iff abs(a(i) - b(i)) < thresh

if nargin<3, tol = 1e-3; end

p = ~(any(abs(a(:)-b(:)) > tol));
%p = (abs(a(:)-b(:)) < tol);