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The square kilometre (square kilometer in American spelling; symbol: km 2) is a multiple of the square metre, the SI unit of area or surface area.In the SI unit of area (m 2), 1 km 2 is equal to 1M(m 2).
Value Item 10 0: 1 square metre: 1 m 2: International A0 paper (841 × 1189 mm) 1.73 m 2: A number commonly used as the average body surface area of a human [27] 1–4 m 2: Area of the top of an office desk 10 1 10–20 m 2: A parking space 70 m 2: Approximate surface area of a human lung [28] 10 2: 1 square decametre (dam 2) 100 m 2: One are ...
km2 Q712226: km 2: US spelling: square kilometer: 1.0 km 2 (0.39 sq mi) km2 sqmi; square hectometre: hm2 Q35852: hm 2: US spelling: square hectometer: 1.0 hm 2 (2.5 acres) square decametre: dam2 Q23931040: dam 2: US spelling: square dekameter: 1.0 dam 2 (1,100 sq ft) square metre: m2 Q25343: m 2: US spelling: square meter: 1.0 m 2 (11 sq ft) m2 ...
Special rounding of the inches value only occurs when "hand in" is the output. For example, if the output is "in hand", the inches value is rounded independently from the hands value. {{convert|156|cm|hand in}} → 156 centimetres (15.1 hands ; 61 in)
The Fredholm alternative can be applied to solving linear elliptic boundary value problems. The basic result is: if the equation and the appropriate Banach spaces have been set up correctly, then either (1) The homogeneous equation has a nontrivial solution, or (2) The inhomogeneous equation can be solved uniquely for each choice of data.
{{km2 mi2|512.3|4|yes}} → 512.3 (197.8) The second argument is the maximum number of significant figures. Values are rounded to the nearest integer unless a value is present in the third argument.
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Points that realize optimally similar distances can then be found by semidefinite approximation (and low rank approximation, if desired) using linear algebraic tools such as singular value decomposition or semidefinite programming. This is known as multidimensional scaling. Variants of these methods can also deal with incomplete distance data.