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→Definition and examples: This is more conventional. See talk. |
→Odd functions: This is the counterpart to the absolute value function as an example of an even function. |
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Examples of odd functions are:
*The [[sign function]] <math>x \mapsto \sgn(x),</math>
*The identity function <math>x \mapsto x,</math>
*<math>x \mapsto x^3,</math>
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