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If a density is log-concave, so is its cumulative distribution function (CDF). If a multivariate density is log-concave, so is the marginal density over any subset of variables. The sum of two independent log-concave random variables is log-concave. This follows from the fact that the convolution of two log-concave functions is log-concave.
The trains portal Image: In rail transport , a train is a vehicle or (more frequently) a string of vehicles capable of being moved along a continuous line of rails or other guideway for the purpose of conveying freight or passengers between points on a predetermined route .
Zhang Heng (Chinese: 張 衡; AD 78–139), formerly romanized Chang Heng, was a Chinese polymathic scientist and statesman who lived during the Han dynasty.Educated in the capital cities of Luoyang and Chang'an, he achieved success as an astronomer, mathematician, seismologist, hydraulic engineer, inventor, geographer, cartographer, ethnographer, artist, poet, philosopher, politician, and ...
Ortberg started his career in 1983 as an engineer at Texas Instruments [7] before joining Rockwell Collins in 1987 as a program manager. [8] [9] In 2001, he was promoted from vice president to vice president and general manager of communication systems at Rockwell Collins. [10]
Student assignments should always be carried out using a course page set up by the instructor. It is usually best to develop articles on the students' user pages , or as drafts . After evaluation, the additions may go on to become a Wikipedia article or be published in an existing article.
The coat of arms of Spain. Spain, formally the Kingdom of Spain, is a country in southwestern Europe with territories in North Africa.It is the largest country in Southern Europe and the fourth-most populous European Union member state.
John Forrest Dillon (December 25, 1831 – May 6, 1914) was an American attorney in Iowa and New York, a justice of the Iowa Supreme Court and a United States circuit judge of the United States Circuit Court for the Eighth Circuit.
A student teacher or prac teacher (practice teacher) is a college, university or graduate student who is teaching under the supervision of a certified teacher in order to qualify for a degree in education. The term is also often used interchangeably with pre-service teacher.