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Numbers, explained like a human would.
One concept per article, no filler — the reasoning behind the calculators, written out so you could reproduce it with a pen.
2 articles
Latest

Time & Date
How Age Calculators Handle Leap Years
Exact age math looks trivial until a leap-year birthday or month-end date hits. Here's the calendar math an accurate age calculator runs.
8 min read
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Science & MathHow Percentages Actually Work — And How They Get Misread
Percentages compare a part to a whole, but the same true number can be framed to look alarming or trivial. Here's how to read one correctly.
10 min read
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Every article has a calculator behind it.
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