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Bottom line: when you use fixed-point arithmetic, make sure you check the low end for underflow and the high end for overflow.
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Even if you RTFM, apply painstaking logic, and wire very carefully, there’s a 50% chance that the knob will turn the wrong way.
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A dab of PTFE lubricant on the latch and strike plate makes the storm door close exceedingly smoothly
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Yeah, OK, it’s a Slide Rule Gloat…
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Somewhat to my surprise, the dimension specs for alkaline and rechargeable cells aren’t quite the same.
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It was pretty exciting to have a small sun in the palm of my hand until the contact finger fell to the bottom of the compartment.
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The schematic shows what real engineers could do, back in the days when transistors came individually packaged with a ten-dollar price tag.
