subtract

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subtract

A relational DBMS operation that generates a third file from all the records in one file that are not in a second file.
References in periodicals archive ?
3 : consisting of a whole before anything is subtracted <gross earnings>
What this does is to convert your original number to a number that is more easily subtracted from, without the need to carry over units from the next column, as is usual with a number containing zeros.
But when they subtracted a photon by passing a light pulse through a glass plate in such a way that a single photon bounced out, the pulse typically emerged with more photons rather than fewer.
The low energy tail has a component that cannot be subtracted by the veto detectors.
Brock provided several examples of formulas demonstrating how the use of recycled materials is cost effective for highway contractors, particularly when hauling costs can be subtracted.
Because rich economies sequester more carbon than poor ones, stored carbon must be subtracted from emissions to determine an economy's net addition to greenhouse gas emissions.
When they subtracted from this total women whose hysterectomy could have preceded the Pap smear, those who still had a cervix and those who had had the hysterectomy to treat a cervical malignancy, the result indicated that approximately 10 million women--almost half of those who had undergone hysterectomy--had needlessly obtained a Pap smear.
However, many students incorrectly adopted an additive strategy for approaching this problem (that is, they subtracted the width from the length and searched for the smallest difference between the dimensions).
Have these numbers been subtracted from your job gains?
But Arnold's ordinary Stoneground 100% Whole Wheat Bread would have only 10 grams of carbohydrates if its label subtracted the two grams of fiber in each slice.
Because he subtracted a number that he increased by 2, he compensates by adding 2 back to the 344 to get 346.
Laboratories can now employ techniques in which a target spectrum can be matched against, or subtracted from, every point in a chemical map to enhance small differences in composition.