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<p>When my S saw this thread he commented, “It took centuries for mathematicians to figure out some of this stuff.”</p>
<p>My dad was a civil engineer, and he was very precise with his calculations.</p>
<p>I prefer that my children know how to calculate a precise answer rather than poke all around the edges hoping they get “close enough” with their answer. Perhaps I am thinking like the daughter of a civil engineer?</p>