Search results
Results from the WOW.Com Content Network
Ratio Inches per foot Millimetres per foot Common use Comments 1:20000: 0.015 mm: Sci-fi: Arii produced injection-molded kits in this scale of the Zentradi spacecraft from the science fiction anime series Macross. 1:4800: 0.064 mm: Sci-fi: This scale has been used for fictional spacecraft for the board game Star Cruiser, originally from Citadel ...
The scale can be expressed in four ways: in words (a lexical scale), as a ratio, as a fraction and as a graphical (bar) scale. Thus on an architect's drawing one might read 'one centimeter to one meter', 1:100, 1/100, or 1 / 100 . A bar scale would also normally appear on the drawing.
The ratio estimator is a statistical estimator for the ratio of means of two random variables. Ratio estimates are biased and corrections must be made when they are used in experimental or survey work. The ratio estimates are asymmetrical and symmetrical tests such as the t test should not be used to generate confidence intervals.
When a ratio is written in the form A:B, the two-dot character is sometimes the colon punctuation mark. [8] In Unicode, this is U+003A : COLON, although Unicode also provides a dedicated ratio character, U+2236 ∶ RATIO. [9] The numbers A and B are sometimes called terms of the ratio, with A being the antecedent and B being the consequent. [10]
In mathematics, specifically in elementary arithmetic and elementary algebra, given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.
This ratio can be as high as 300× in professional television camera lenses. [3] As of 2009, photographic zoom lenses beyond about 3× cannot generally produce imaging quality on par with prime lenses. Constant fast aperture zooms (usually f / 2.8 or f / 2.0) are typically restricted to this zoom range. Quality degradation is less perceptible ...
Optical magnification is the ratio between the apparent size of an object (or its size in an image) and its true size, and thus it is a dimensionless number. Optical magnification is sometimes referred to as "power" (for example "10× power"), although this can lead to confusion with optical power .
The 1:12 scale is a traditional scale (ratio) for models and miniatures. In this scale (ratio), one inch on the scale model or miniature is equal to twelve inches on the original object being copied. Depending on the application, this particular scale (ratio) is also called one-scale (since 1 inch equals 1 foot). [1]