09.08 - For Friday: Read section 1.2 Is everyone getting...

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For Friday: Read section 1.2 Is everyone getting the email? Get contact info for new students. Reminder: You will derive the maximum benefit from (and enjoyment of) class discussions if you have done the reading ahead of time. Class meetings are where we explore and firm up our grasp of the concepts, NOT the place where we encounter them for the first time. If you haven’t done the reading, it’s still better to come to class than not to, and you should still try to participate, but you won’t get as much out of the class as you will if you’ve at least skimmed the section. A main idea of section 1.1 is that a function need not be defined everywhere (that is, the domain need not be the set of all real numbers). The empty function is an extreme case; here are some less extreme examples. Example: The domain of the function f ( x ) = x / x is . .. ..?. . { x in R : x 0}, because 0/0 is undefined.
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(You can also write { x R : x 0} or { x : x 0}, but please don’t write { x
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This note was uploaded on 02/13/2012 for the course MATH 141 taught by Professor Staff during the Fall '11 term at UMass Lowell.

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09.08 - For Friday: Read section 1.2 Is everyone getting...

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