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Zero Point |
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zero point [′zirĀ·ō ‚pȯint]
(mathematics) A complex number at which an analytic function assumes the value zero. (ordnance) The location of the center of a burst of an atomic missile at the instant of detonation; the zero point may be in the air, or on or beneath the surface of land or water, dependent upon the type of burst, and it is thus to be distinguished from ground zero. Zero Point the zero position of the origin of some frame of reference. In opticomechanical measuring instruments and in the scale of values of microscopes and rulers, the zero point is an imaginary point or gradation that corresponds to the zero indicator of the reading mechanism. The zero point can vary in these instruments because of particular design features or because of various external forces (temperature, pressure). The zero point is determined by special research or by observation. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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