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For instance, 7 divided by 2 is not a whole number but 3.5. [73] One way to ensure that the result is an integer is to round the result to a whole number. However, this method leads to inaccuracies as the original value is altered. [ 74 ]
If several such values happen to lie close together, the corresponding parabolas approximately coincide, and the triples cluster in a narrow parabolic strip. For instance, 38 2 = 1444, 2 × 27 2 = 1458, 3 × 22 2 = 1452, 5 × 17 2 = 1445 and 10 × 12 2 = 1440; the corresponding parabolic strip around n ≈ 1450 is clearly visible in the scatter ...
[2] [3] Historically, the concept of a proof and its associated mathematical rigour first appeared in Greek mathematics , most notably in Euclid 's Elements . [ 4 ] Since its beginning, mathematics was primarily divided into geometry and arithmetic (the manipulation of natural numbers and fractions ), until the 16th and 17th centuries, when ...
The median land area used by US nuclear power stations per 1 GW installed capacity is 1.3 square miles (3.4 km 2). [ 356 ] [ 357 ] To generate the same amount of electricity annually (taking into account capacity factors ) from solar PV would require about 60 square miles (160 km 2 ), and from a wind farm about 310 square miles (800 km 2 ).
Google between 2007 and 2010 saved $3.1 billion in taxes by shuttling non-U.S. profits through Ireland and the Netherlands and then to Bermuda. Such techniques lower its non-U.S. tax rate to 2.3 per cent, while normally the corporate tax rate in, for instance, the UK is 28 per cent. [227]
Native support for USB 3.0 is not included because of delays in the finalization of the standard. [88] At WinHEC 2008 Microsoft announced that color depths of 30-bit and 48-bit would be supported in Windows 7 along with the wide color gamut scRGB (which for HDMI 1.3 can be converted and output as xvYCC). The video modes supported in Windows 7 ...
The reading mechanism ran at 5,000 characters per second with the paper tape moving at 40 ft/s (12.2 m/s; 27.3 mph). Colossus Mark 1 contained 1500 thermionic valves (tubes), but Mark 2 with 2400 valves and five processors in parallel, was both 5 times faster and simpler to operate than Mark 1, greatly speeding the decoding process.
[11] [12] In a sectionalized mast, insulators in the vertical support members divide the mast into two vertically stacked conductive sections, which are fed in phase by separate feedlines. This increases the proportion of power radiated in horizontal directions and allows the mast to be taller than 0.625 λ {\displaystyle \lambda } without ...