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Focal length. The focal point F and focal length f of a positive (convex) lens, a negative (concave) lens, a concave mirror, and a convex mirror. The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a ...
The centimetre ( SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres ( 1 100 m = 0.01 m ). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.
Arc length, the distance between two points along a section of a curve. Length of a sequence or tuple, the number of terms. (The length of an n -tuple is n) Length of a module, in abstract algebra. Length of a polynomial, the sum of the magnitudes of the coefficients of a polynomial. Length of a vector, the size of a vector.
It is about 1.616 255 × 10−35 m or about 10 −20 times the size of a proton. It is one of the Planck units, defined by Max Planck. It is an important length for quantum gravity because it may be approximately the size of the smallest black holes. [3] The speed of light is also one Planck length per Planck time .
The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 299 792 458 of a second, where the second is defined by a hyperfine transition frequency of caesium.
Run-length encoding. La compresión RLE o Run-length encoding es una forma muy simple de compresión de datos en la que secuencias de datos con el mismo valor consecutivas son almacenadas como un único valor más su recuento. Esto es más útil en datos que contienen muchas de estas "secuencias"; por ejemplo, gráficos sencillos con áreas de ...
