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The coordinate surfaces of the Cartesian coordinates (x, y, z). The z-axis is vertical and the x-axis is highlighted in green. Thus, the red plane shows the points with x = 1, the blue plane shows the points with z = 1, and the yellow plane shows the points with y = −1.
Cuatrillo with comma Mayan ejective alveolar affricate /tsʼ/ Ƽ ƽ: Tone five A letter used in the Zhuang language from 1957 to 1986 to indicate its fifth tone Ƅ ƅ: Tone six Zhuang (1957–1986: sixth tone) Ɂ ɂ ʔ: Glottal stop: IPA /ʔ/ IPA glottal stop, Canadian aboriginal orthographies Ꜣ ꜣ Egyptological alef Ꞌ ꞌ Saltillo
An interpunct ·, also known as an interpoint, [1] middle dot, middot, centered dot or centred dot, is a punctuation mark consisting of a vertically centered dot used for interword separation in Classical Latin. (Word-separating spaces did not appear until some time between 600 and 800 CE.) It appears in a variety of uses in some modern languages.
Historically, upper-case letters were used for representing points in geometry, and lower-case letters were used for variables and constants. Letters are used for representing many other types of mathematical object. As the number of these types has increased, the Greek alphabet and some Hebrew letters have also come to be used.
In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
In Canadian Aboriginal Syllabics, in addition to the middle dot as a letter, centred dot diacritic, and dot above diacritic, there also is a two-dot diacritic in the Naskapi language representing /_w_V/ which depending on the placement on the specific Syllabic letter may resemble a colon when placed vertically, diaeresis when placed ...
All about the Oxford comma, including when it may or may not be necessary.
In English writing, quotation marks or inverted commas, also known informally as quotes, talking marks, [1] [2] speech marks, [3] quote marks, quotemarks or speechmarks, are punctuation marks placed on either side of a word or phrase in order to identify it as a quotation, direct speech or a literal title or name.