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The atomic time relates to the orbital period of a ground state electron around a hydrogen atom and is about 24.2 attoseconds. The svedberg is a time unit used for sedimentation rates (usually of proteins). It is defined as 10 −13 seconds (100 fs). The TU (for time unit) is a unit of time defined as 1024 μs for use in engineering.
"The length of the period of the simple continued fraction expansion of d 1/2 ". Pacific J. Math. 71: 21– 32. doi: 10.2140/pjm.1977.71.21. Davenport, H. (December 1982). The Higher Arithmetic. Cambridge University Press. ISBN 0-521-28678-6. Gliga, Alexandra Ioana (17 March 2006). On continued fractions of the square root of prime numbers (PDF).
In signal processing, a periodogram is an estimate of the spectral density of a signal. The term was coined by Arthur Schuster in 1898. [1] Today, the periodogram is a component of more sophisticated methods (see spectral estimation).
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Two modulo-9 LCGs show how different parameters lead to different cycle lengths. Each row shows the state evolving until it repeats. The top row shows a generator with m = 9, a = 2, c = 0, and a seed of 1, which produces a cycle of length 6.
youtube-dl -F <url> The video can be downloaded by selecting the format code from the list or typing the format manually: youtube-dl -f <format/code> <url> The best quality video can be downloaded with the -f best option. Also, the quality of the audio and video streams can be specified separately and merged with the + operator. [35]