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A good example of this is the List of Benet Academy alumni. (See also Format of the first sentence below.) When the page title is used as the subject of the first sentence, it may appear in a slightly different form, and it may include variations, including plural forms (particularly if they are unusual or confusing) or synonyms .
Astigmatism causes difficulties in seeing fine detail. Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery. [5] Astigmatism is quite common. Studies have shown that about one in three people suffers from it.
The Elements of Style (also called Strunk & White) is a style guide for formal grammar used in American English writing. The first publishing was written by William Strunk Jr. in 1918, and published by Harcourt in 1920, comprising eight "elementary rules of usage," ten "elementary principles of composition," "a few matters of form," a list of 49 "words and expressions commonly misused," and a ...
List articles are encyclopedia pages consisting of introductory material in the lead section followed by a list, possibly arranged in sub-sections. The items on these lists might include links to specific articles or other information, and must be supported with references like any article.
Against-the-rule astigmatism – the horizontal meridian is steepest (a rugby ball or American football standing on its end). [17] Oblique astigmatism – the steepest curve lies in between 120 and 150 degrees and 30 and 60 degrees. [17] Irregular astigmatism – principal meridians are not perpendicular.
The following list includes additional standardized sections in an article. A complete article need not have all, or even most, of these elements. Before the article content Short description [1] {{DISPLAYTITLE}}, {{Lowercase title}}, {{Italic title}} [2] (some of these may also be placed before the infobox [3] or after the infobox [4]) Hatnotes
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This allows a larger useful field of view, and the remaining astigmatism is symmetrical around the distorted objects, allowing astrometry across the wide field of view. However, the astigmatism can be reduced by including a third curved optical element. When this element is a mirror, the result is a three-mirror anastigmat.