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  2. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    Similar size as AA cell. Those with a protection circuit are slightly longer. Used in many LED flashlights. Nominal voltage is 3.7 V. Variants include: Shorter Li-ion cell with a step-down converter to 1.5 V, e.g. Kentli 2,800 mAh. [180] Non-rechargeable LS14500 primary cell (SAFT: 2,600 mAh, 3.6 V) [181] 14650 [182] 940–1,200 [183] 14: 65

  3. JPEG XR - Wikipedia

    en.wikipedia.org/wiki/JPEG_XR

    JPEG XR's design [1] [20] is conceptually very similar to JPEG: the source image is optionally converted to a luma-chroma colorspace, the chroma planes are optionally subsampled, each plane is divided into fixed-size blocks, the blocks are transformed into the frequency domain, and the frequency coefficients are quantized and entropy coded ...

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This code was defined in 1998 as one of the traditional IETF April Fools' jokes, in RFC 2324, Hyper Text Coffee Pot Control Protocol, and is not expected to be implemented by actual HTTP servers. The RFC specifies this code should be returned by teapots requested to brew coffee. [ 18 ]

  5. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    One such type of Gray code is the n-ary Gray code, also known as a non-Boolean Gray code. As the name implies, this type of Gray code uses non-Boolean values in its encodings. For example, a 3-ary Gray code would use the values 0,1,2. [31] The (n, k)-Gray code is the n-ary Gray code with k digits. [63]

  6. Point (typography) - Wikipedia

    en.wikipedia.org/wiki/Point_(typography)

    The point was first established by the Milanese typographer, Francesco Torniella da Novara (c. 1490 – 1589) in his 1517 alphabet, L'Alfabeto.The construction of the alphabet is the first based on logical measurement called "Punto," which corresponds to the ninth part of the height of the letters or the thickness of the principal stroke.

  7. Help:HTML in wikitext - Wikipedia

    en.wikipedia.org/wiki/Help:HTML_in_wikitext

    The MediaWiki software, which drives Wikipedia, allows the use of a subset of HTML 5 elements, or tags and their attributes, for presentation formatting. But most HTML can be included by using equivalent wiki markup or templates; these are generally preferred within articles, as they are sometimes simpler for most editors and less intrusive in the editing window; but Wikipedia's Manual of ...

  8. 8-bit color - Wikipedia

    en.wikipedia.org/wiki/8-bit_color

    Due to the nature of the 8-bit system, most images have different color maps. Since an 8-bit color display can not display two images with different color maps at the same time, it is usually impossible to display two different 8-bit images on the same such display at the same time.

  9. ASCII art - Wikipedia

    en.wikipedia.org/wiki/ASCII_art

    sharpness (solutions: a longer text, with a smaller font; a greater set of characters; variable width fonts); ratio (solutions with compatibility issues: font with a square grid; stylized without extra line spacing). Examples of converted images are given below.