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Excel's storage of numbers in binary format also affects its accuracy. [3] To illustrate, the lower figure tabulates the simple addition 1 + x − 1 for several values of x. All the values of x begin at the 15 th decimal, so Excel must take them into account. Before calculating the sum 1 + x, Excel first approximates x as a binary number
Spaces within a formula must be directly managed (for example by including explicit hair or thin spaces). Variable names must be italicized explicitly, and superscripts and subscripts must use an explicit tag or template. Except for short formulas, the source of a formula typically has more markup overhead and can be difficult to read.
Shortened footnotes, also called shortened citations, are one method of citing sources for a Wikipedia article. They are a hybrid of standard footnotes and Harvard-style parenthetical referencing . Shortened footnotes, often with page numbers, appear in the reference section (wherever the reference list markup {{ reflist }} is placed) and ...
Footnotes; Footnotes with list-defined references; Shortened footnotes; Citations can also be placed as external links, but these are not preferred because they are prone to link rot and usually lack the full information necessary to find the original source in cases of link rot.
The connection between text and footnote uses appropriately-created name attributes per the template table above, so it is possible to identify the intended footnote even if numbering becomes incorrect. The footnote connection is intended to be robust so content can be converted for use with future versions of supporting software.
The remaining footnotes will use shortened citations (these usually contain the author's last name, the date of publication, and the relevant page number[s]). A less common approach is to attach a {{rp|page}} right after the footnote marker replacing the "page" with the appropriate page number or numbers. For example:
With footnotes, linking works both ways. For example, for footnote 1, instead of clicking on the upward caret ("^") to go to the footnote, you click the "a", "b", and "c" to go to the three places in the body of the text where the footnote number ([1], in this case) is located. Multiple footnotes are marked up differently than singular ones.
Inline parenthetical referencing was a previously accepted citation system that is now deprecated per WP:PARREF.The recommendation is to convert inline parenthetical references to shortened footnotes (as depicted below) or regular footnotes (as depicted in the first example above) or footnotes with list-defined references.