approximationəˌprɒk səˈmeɪ ʃən
approximation (n)
- plural
- approximations
English Definitions:
estimate, estimation, approximation, idea (noun)
an approximate calculation of quantity or degree or worth
"an estimate of what it would cost"; "a rough idea how long it would take"
approximation (noun)
the quality of coming near to identity (especially close in quantity)
approximation (noun)
an imprecise or incomplete account
"newspapers gave only an approximation of the actual events"
approximation, bringing close together (noun)
the act of bringing near or bringing together especially the cut edges of tissue
approximation (Noun)
The act, process or result of approximating.
approximation (Noun)
An imprecise solution or result that is adequate for a defined purpose.
approximation (Noun)
The act of bringing together the edges of tissue to be sutured.
Approximation
An approximation is anything that is similar but not exactly equal to something else. This applies to anything that is nearly but not exactly correct; similar, but not exactly the same. Although approximation is most often applied to numbers, it is also frequently applied to such things as mathematical functions, shapes, and physical laws. Approximations might be used if incomplete information prevents use of exact representations. For instance, some problems in physics are too complex to solve by direct analysis, or progress could be limited by available analytical tools. Thus, even when the exact representation is known, an approximation may yield a sufficiently accurate solution while reducing the complexity of the problem significantly. For instance, physicists often approximate the shape of the Earth as a sphere even though more accurate representations are possible, because many physical behaviours are much easier to calculate for a sphere than for other shapes. It is difficult to exactly analyze the motion of several planets orbiting a star, for example, due to the complex interactions of the planets' gravitational effects on each other, so an approximate solution is effected by performing iterations. In the first iteration, the planets' gravitational interactions are ignored, and the star is assumed to be fixed. If a more precise solution is desired, another iteration is then performed, using the positions and motions of the planets as identified in the first iteration, but adding a first-order gravity interaction from each planet on the others. This process may be repeated until a satisfactorily precise solution is obtained. The use of perturbations to correct for the errors can yield more accurate solutions. Simulations of the motions of the planets and the star also yields more accurate solutions.
Approximation
An approximation is anything that is intentionally similar but not exactly equal to something else.
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"approximation." Kamus.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.kamus.net/english/approximation>.
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