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  2. Aspect ratio (image) - Wikipedia

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

    Widescreen aspect ratio sometimes used in shooting commercials etc. as a compromise format between 4:3 and 16:9. When converted to a 16:9 frame, there is slight pillarboxing, while conversion to 4:3 creates slight letterboxing. All widescreen content on ABC Family's SD feed until January 2016 was presented in this ratio. 1.6:1 = 16:10 = 8:5

  3. Contraposition - Wikipedia

    en.wikipedia.org/wiki/Contraposition

    As a matter of logical inference, to transpose or convert the terms of one proposition requires the conversion of the terms of the propositions on both sides of the biconditional relationship, meaning that transposing or converting (P → Q) to (Q → P) requires that the other proposition, (¬Q → ¬P), to be transposed or converted to (¬P ...

  4. Complex number - Wikipedia

    en.wikipedia.org/wiki/Complex_number

    A complex number can be visually represented as a pair of numbers (a, b) forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the "imaginary unit", that satisfies i 2 = −1.

  5. Lebesgue integral - Wikipedia

    en.wikipedia.org/wiki/Lebesgue_integral

    The area of a small horizontal "slab" under the graph of f, of height dy, is equal to the measure of the slab's width times dy: ({() >}). The Lebesgue integral may then be defined by adding up the areas of these horizontal slabs. From this perspective, a key difference with the Riemann integral is that the "slabs" are no longer rectangular ...

  6. Glossary of bowling - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_bowling

    Conversion (convert): In the second ball roll of a frame, the knocking down of all pins that remained standing after the first roll, so as to achieve a spare for that frame. Term is often preceded by the number(s) of the pins involved (example: "3–6–10 conversion").

  7. Iron-deficiency anemia - Wikipedia

    en.wikipedia.org/wiki/Iron-deficiency_anemia

    Iron-deficiency anemia is anemia caused by a lack of iron. [3] Anemia is defined as a decrease in the number of red blood cells or the amount of hemoglobin in the blood. [3] When onset is slow, symptoms are often vague such as feeling tired, weak, short of breath, or having decreased ability to exercise. [1]

  8. Wikipedia:Rabbit health - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Rabbit_health

    Molar spurs: These are caused by improper abrasion of the molars and can dig into the rabbit's tongue and/or cheek causing severe pain. The underlying cause of molar spurs in rabbits without (inborn) malocclusion is usually a wrong diet.