| 单词 |
pre-image |
| 释义 |
pre-image pre-image[¦prē′im·ij] (mathematics) For a point y in the range of a function ƒ, the set of points x in the domain of ƒ for which ƒ(x) = y. For a subset A of the range of a function ƒ, the set of points x in the domain of ƒ for which ƒ(x) is a member of A. Also known as inverse image. |
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