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The KCharSelect character mapping tool shown displaying a subset of the Unicode Mathematical Operators The Unicode logo. Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard.
The division sign (÷) is a mathematical symbol consisting of a short horizontal line with a dot above and another dot below, used in Anglophone countries to indicate the operation of division. This usage, though widespread in some countries, is not universal and the symbol has a different meaning in other countries.
Upside-down marks, simple in the era of hand typesetting, were originally recommended by the Real Academia Española (Royal Spanish Academy), in the second edition of the Ortografía de la lengua castellana (Orthography of the Castilian language) in 1754 [3] recommending it as the symbol indicating the beginning of a question in written Spanish—e.g. "¿Cuántos años tienes?"
Microsoft later also adopted the Apple key combinations with the introduction of Windows, using the control key as modifier key. For users migrating to Windows from DOS this was a big change as DOS users used the "COPY" and "MOVE" commands. Similar patterns of key combinations, later borrowed by others, are widely available in most GUI ...
The modern dagger symbol originated from a variant of the obelus, originally depicted by a plain line −, or a line with one or two dots тик ÷. [7] It represented an iron roasting spit, a dart, or the sharp end of a javelin, [8] symbolizing the skewering or cutting out of dubious matter.
The slash is a slanting line punctuation mark /.It is also known as a stroke, a solidus, a forward slash and several other historical or technical names.Once used as the equivalent of the modern period and comma, the slash is now used to represent division and fractions, as a date separator, or to connect alternative terms.
On Apple Macintosh operating systems (including Mac OS X), it can be typed by pressing and holding the Option key and then typing N, followed by typing either N or n. On the iPhone and iPad , which use the Apple iOS operating system, the ñ is accessed by holding down the n key, which opens a menu (on an English-language keyboard).
Historically, computer language syntax was restricted to the ASCII character set, and the asterisk * became the de facto symbol for the multiplication operator. This selection is reflected in the numeric keypad on English-language keyboards, where the arithmetic operations of addition, subtraction, multiplication and division are represented by ...