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2 天前 · 300 is a 2006 American epic historical action film based on the 1998 comic book series of the same name by Frank Miller and Lynn Varley.Co-written and directed by Zack Snyder, with Miller serving as executive producer and consultant, the film is, like its source material, a fictionalized retelling of the Battle of Thermopylae in the Greco-Persian Wars.
4 天前 · Central limit theorem. In probability theory, the central limit theorem ( CLT) states that, under appropriate conditions, the distribution of a normalized version of the sample mean converges to a standard normal distribution. This holds even if the original variables themselves are not normally distributed.
3 天前 · Probability theory. In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is. The parameter is the mean or expectation of the distribution (and also its median and mode ), while ...
4 天前 · Barbie is a 2023 fantasy comedy film directed by Greta Gerwig from a screenplay she wrote with Noah Baumbach.Based on the eponymous fashion dolls by Mattel, it is the first live-action Barbie film after numerous animated films and specials.It stars Margot Robbie as the title character and Ryan Gosling as Ken, and follows them on a journey of self-discovery through both Barbieland and the real ...
3 天前 · Laplace transform. In mathematics, the Laplace transform, named after Pierre-Simon Laplace ( / ləˈplɑːs / ), is an integral transform that converts a function of a real variable (usually , in the time domain) to a function of a complex variable (in the complex-valued frequency domain, also known as s-domain, or s-plane ).
4 天前 · Google Translate is a web-based free-to-user translation service developed by Google in April 2006. [11] It translates multiple forms of texts and media such as words, phrases and webpages. Originally, Google Translate was released as a statistical machine translation service. [11] The input text had to be translated into English first before ...
4 天前 · Definitions Generation and parameters Let be a standard normal variable, and let and be two real numbers, with >.Then, the distribution of the random variable = + is called the log-normal distribution with parameters and .These are the expected value (or mean) and standard deviation of the variable's natural logarithm, not the expectation and standard deviation of itself.
