3.10 The Point: You Can Measure Anything If you can represent a set of characteristics with numbers, you can compare them with the theorem: Temperatures during the week: (Mon, Tues, Wed, Thurs, Fri). Compare successive weeks to see how “different” they are (find the difference between 5-dimensional vectors). Number of customers coming into a store hour-by-hour, day-by-day, or week-by-week Spacetime distance: (latitude, longitude, altitude, date). Useful if you’re making a time machine (or a video game that uses one)! Differences between people: (Height, Weight, Age) Differences between
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