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Signed zero is zero with an associated sign. In ordinary arithmetic, −0 = 0. However, in computing, some number representations allow for the existence of two zeros, often denoted by −0 (negative zero) and +0 (positive zero). This occurs in some signed number representations for integers, and in most floating point number representations.
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The Naval Research Laboratory's (NRL's) Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 23 hours and 17 minutes, setting an unofficial flight endurance record for a fuel-cell powered flight.
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Waze is a free social mobile app that enables drivers to build and use live maps, real-time traffic updates and turn-by-turn navigation for an optimal commute.
100% powered by users the more you drive the better it gets. Join the community of drivers in your area today! -
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