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pre-image |
Also found in: Wikipedia | 0.02 sec. |
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pre-image [¦prē′im·ij] (mathematics) For a pointyin the range of a function ƒ, the set of pointsxin the domain of ƒ for which ƒ(x) =y. For a subsetAof the range of a function ƒ, the set of pointsxin the domain of ƒ for which ƒ(x) is a member ofA. Also known as inverse image. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Measure an angle of the image (the dilated polygon) and the corresponding angle on the pre-image (the original polygon). XBM provides a Snapshot Utilities feature that permits holding pre-image copies of DB2 pages in cache. |
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