MATH 2UU3 Lecture 2: Definitions, red herrings
11 Jan 2019
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Very important to know definitions; no matter how comprehensive documents are, they still miss definitions. In math, definitions never change but in faculties like psychology, definitions are always changing (i. e. dsm is on fifth edition) Dsm - money: physicians can only prescribe pulls for people who are medically diagnosed with sad. Red: colour of fire, colour of blood: physicists: electromagnetic radiation, in visible light spectrum, wavelength of 620-750 nanometres, computer design, hexadecimal #ff0000. In math, prime numbers don"t care who the person is, but interpretation of colour varies from person to person. "no sodium" does not mean zero sodium, but a very low amount of sodium under a specific level. Problem: create a mathematically sound argument showing that starbucks venti (20 oz) blonde roast cup of coffee (which has 475 mg of caffeine) can be claimed to be 99. 9% caffeine free. 1l = 1000 ml = 1000 g (density conversion)
