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| QWERTYman (443) |  |
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Even and odd functions Seriously. When, when, when, will we ever need to know that: f(-x) = f(x) makes a function even, and f(-x) = -f(x) makes a function odd? What use does this have? "Johnson, we just got the graph of <insert graphable idea here>. We need you to tell us whether it's even or odd." What the hell? Feel free to post others below. | |
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| firedraco (4744) | |
| If you are taking anti derivatives, it can simplify stuff. | |
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| Bazzy (6258) | |
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When you are studying a function, if it's odd or even it is easier as the same things that happen to the function for x > 0 are the same as when x < 0. You should first check if the function is odd/even/something_else and then draw the graph, not vice versa | |
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Things we'll never use