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The concept of a color system with a hue was explored as early as 1830 with Philipp Otto Runge's color sphere. The Munsell color system from the 1930s was a great step forward, as it was realized that perceptual uniformity means the color space can no longer be a sphere. As a convention, the hue for red is set to 0° for most color spaces with ...
List of ICD-9 codes 740–759: congenital anomalies; List of ICD-9 codes 760–779: certain conditions originating in the perinatal period; List of ICD-9 codes 780–799: symptoms, signs, and ill-defined conditions; List of ICD-9 codes 800–999: injury and poisoning; List of ICD-9 codes E and V codes: external causes of injury and supplemental ...
Blue tansy (Tanacetum annuum) for the color of its oil. Buchu oil, made from the buchu shrub. Considered toxic and no longer widely used. [3] Formerly used medicinally. Calamodin oil or calamansi essential oil comes from a citrus tree in the Philippines extracted via cold press or steam distillation.
The color combinations are applied to the insulation that covers each conductor. Typically, one color is a prominent background color of the insulation, and the other is a tracer, consisting of stripes, rings, or dots, applied over the background. The background color always matches the tracer color of its paired conductor, and vice versa.
Mathematical Markup Language (MathML) is a mathematical markup language, an application of XML for describing mathematical notations and capturing both its structure and content, and is one of a number of mathematical markup languages.
A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name. A numeric character reference uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.
This table lists all two-letter codes (set 1), one per language for ISO 639 macrolanguage, and some of the three-letter codes of the other sets, formerly parts 2 and 3. Entries in the Scope column distinguish: Individual language; Collections of related languages; Macrolanguages; The Type column distinguishes: Ancient languages (extinct since ...
This is a list of published [note 1] standards and other deliverables of the International Organization for Standardization (ISO). [note 2] For a complete and up-to-date list of all the ISO standards, see the ISO catalogue. [1] The standards are protected by copyright and most of them must be purchased.