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  2. Blackboard bold - Wikipedia

    en.wikipedia.org/wiki/Blackboard_bold

    Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed mathematical texts. The style is most commonly used to represent the number sets ( natural numbers ), ( integers ), ( rational numbers ), ( real numbers ), and ...

  3. Aspect ratio (image) - Wikipedia

    en.wikipedia.org/wiki/Aspect_ratio_(image)

    Aspect ratio (image) The aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are 1.85:1 and 2.40:1 in cinematography, 4:3 and 16:9 in television, and 3:2 in still photography .

  4. Comma-separated values - Wikipedia

    en.wikipedia.org/wiki/Comma-separated_values

    Comma-separated values ( CSV) is a text file format that uses commas to separate values, and newlines to separate records. A CSV file stores tabular data (numbers and text) in plain text, where each line of the file typically represents one data record. Each record consists of the same number of fields, and these are separated by commas in the ...

  5. QTI - Wikipedia

    en.wikipedia.org/wiki/QTI

    QTI was produced by the IMS Global Learning Consortium (IMS GLC), which is an industry and academic consortium that develops specifications for interoperable learning technology. QTI was inspired by the need for interoperability in question design, and to avoid people losing or having to re-type questions when technology changes.

  6. Viagra Dosage: 25/50/100 mg, Form, When to Use, and More

    www.healthline.com/health/drugs/viagra-dosage

    Dosage for erectile dysfunction. The recommended dosage of Viagra for erectile dysfunction (ED) is 50 mg, taken as needed about 1 hour before sexual activity. You can take it 30 minutes to 4 hours ...

  7. 1 - Wikipedia

    en.wikipedia.org/wiki/1

    1 ( one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of unit length is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest ...

  8. Allies of World War I - Wikipedia

    en.wikipedia.org/wiki/Allies_of_World_War_I

    The Entente, or the Allies, were an international military coalition of countries led by France, the United Kingdom, Russia, the United States, Italy, and Japan against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria in World War I (1914–1918). By the end of the first decade of the 20th century, the major ...

  9. 9-1-1 (TV series) - Wikipedia

    en.wikipedia.org/wiki/9-1-1_(TV_series)

    9-1-1 is an American procedural drama television series created by Ryan Murphy, Brad Falchuk, and Tim Minear. The series had aired on Fox and currently airs on ABC . [1] The series follows the lives of Los Angeles first responders : police officers , paramedics , firefighters , and dispatchers .