PC aa Prof Math rules

PC aa Prof Math rules - 7.2 On the other hand, just because...

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Pilachowski’s Rules of Mathematics 1. There is no such thing as an uninteresting number. (This can be proven mathematically.) 1 1 2 . Math is fun! 2. It doesn’t matter how you do a problem, as long as you get the right answer consistently (without cheating). 3.14 You can never have enough pi. (Think about this one!) 3.14159 In mathematical circles, pie are not round. Pi r squared. 4. Write things down, or draw pictures. (You don’t have to do mathematics in your head.) 5. Do only one thing at a time. 5.1 Break a long problem down into small steps. (Write each step down as you go; see rule #4.) 6. Keep everything as simple ( elegant ) as possible. 6.1 Keep numbers small. (That is, cancel and reduce . Big numbers lead to big mistakes.) 6.2 Combine like terms. 6.3 Look for the efficient/easy way. (See rule #2.) 7. Check to see whether your answer makes sense. (Don’t be afraid to use your eraser !) 7.1 Read the question to make sure you’re answering what was asked.
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Unformatted text preview: 7.2 On the other hand, just because it “ looks like it”, doesn’t mean it is , so check your arithmetic, too. 8. Conservation of Stuff: Nothing ever just appears or disappears without a reason. It may look different, but it’s still there. 8.1 As long as you multiply (or divide) the top and bottom of a fraction by the same thing, you still have the same amount of stuff. 8.2 As long as you do the same thing to both sides of an equation, you still have the same amount of stuff. 9. Negatives are tricky little buggers. 9.1 Obey rule #4 and rule #5, especially when dealing with negative numbers! 9.2 Negative numbers are useful; negative attitudes are counterproductive. 10. No one has ever died from doing mathematics. WARNING: Disregarding the above rules may result in wrong answers and/or other penalties dispensed by the Math Police. © copyright 1992, by Tim Pilachowski...
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This note was uploaded on 01/11/2012 for the course MATH 220 taught by Professor Cohen during the Summer '08 term at Maryland.

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