Real number

260 bytes removed, 18:12, 8 August 2008
rm common misunderstanding about "real" and "imaginary" terminology
'''Real numbers''' can be thought of as are numbers which that can be represented by some infinite or finite decimal representation, such as 0.707106781187... They are called "real" because they actually exist in the real world, i.e. measures, weights, temperatures and so on are all real numbers, as opposed to the [[imaginary number]]s, which are just an abstract concept, but do not really exist.
In classical physics, measurements of things that can vary smoothly and continuously, like [[speed]] or [[temperature]], are treated as real numbers.