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ApproxEQR

This performs a relative comparison by scaling the default epsilon-value to the size of the larger of the two.

note

It should be used when a and b are of the same magnitude and very large or very small. If either a or b is zero (exactly) then this routine is equivalent to an absolute comparison APPROXEQ.

abool= a .APPROXEQR. b
(a−b)≤1.0×10−15max⁡∣a∣,∣b∣(a-b) \le 1.0\times 10^{-15} \max{\vert a \vert, \vert b \vert}