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A ratio shows how many times one number contains another, and can be written as a fraction, a colon, or a percentage. Learn about the origin, terminology, and applications of ratios in mathematics, physics, and other fields.
Learn about the proportional relationship between the physical width and height of a display device, and how it affects the image dimensions and area. Compare different aspect ratios for TVs, computers, and other devices, such as 4:3, 16:9, 21:9, and 32:9.
Learn about the aspect ratio of an image, which is the ratio of its width to its height. Find out the common aspect ratios used in film, television, and photography, such as 3:2, 4:3, 16:9, and 2.40:1.
143 is a natural number with various mathematical and cultural properties. It is the sum of seven consecutive primes, the difference in the first exception to the pattern of prime numbers, and a popular pager code for "I love you".
Learn what a time signature is, how it indicates the meter and tempo of a musical movement, and how to read and write different types of time signatures. See examples of simple, compound, and complex time signatures, and their common uses in various music styles.
Four Thirds system is a standard for digital single-lens reflex camera design and development, with a 4/3" sensor and a 4:3 aspect ratio. It was created by Olympus and Kodak in 2002, and later evolved into Micro Four Thirds system, which is smaller and more compact.
Learn about the shape and size of the image sensor in digital photography, and how it affects the angle of view, depth of field, and noise of the camera. Compare different sensor formats and sizes with examples and formulas.
Example 1. p = 7, in this case p ≡ 3 (mod 4) and we have: ... This means that every positive integer can be written as a sum of Fibonacci numbers, where any one ...