RE: the calculator screenshot - it's still reliable because the same answer will be produced for the same inputs every time. And the behavior, though possibly confusing to the end user at times, is based on choices made in the design of the system (floating point vs integer representations, rounding/truncating behavior, etc). It's reliable deterministic logic all the way down.

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stavros 19 hours ago | parent [-]

> I've never seen a calculator come up with the wrong answer when adding two numbers.

1.00000001 + 1 doesn't equal 2, therefore the claim is false.

	▲	sjsdaiuasgdia 19 hours ago \| parent [-]
		Sure it does, if you have made a system design decision about the precision of the outputs. At the precision the system is designed to operate at, the answer is 2.