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FilledSmallSquare$EqualTolerance gives the number of decimal digits by which two numbers can disagree and still be considered equal according to Equal.

FilledSmallSquare The default setting is equal to Log[10, 2^7], corresponding to a tolerance of 7 binary digits.

FilledSmallSquare See also: $MachineEpsilon.

FilledSmallSquare Note: this is an experimental feature, and in future versions of Mathematica it may not be supported, or may have a different specification.