Yes, Data::Float (which had slipped my mind at the time) is worth a mention here.
It also provides nextup, nextdown and nextafter functions.

Be aware that the outputs you're getting provide insufficient precision - eg the approximation 4.44089209850063e-016 instead of the accurate 4.4408920985006262e-16.

Cheers,
Rob

In reply to Re^4: Determining the minimum representable increment/decrement possible? by syphilis
in thread Determining the minimum representable increment/decrement possible? by BrowserUk

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