释义 |
Asymptotic NotationLet be a integer variable which tends to infinity and let be a continuous variable tending to some limit. Also, let or be a positive function and or any function. Then Hardy and Wright (1979) define - 1.
to mean that for some constant and all values of and , - 2.
to mean that , - 3.
to mean that , - 4.
to mean the same as , - 5.
to mean , and - 6.
to mean for some positive constants and .
implies and is stronger than . References
Hardy, G. H. and Wright, E. M. ``Some Notation.'' §1.6 in An Introduction to the Theory of Numbers, 5th ed. Oxford, England: Clarendon Press, pp. 7-8, 1979.
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