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2024年6月19日 · The bonobo ( / bəˈnoʊboʊ, ˈbɒnəboʊ /; Pan paniscus ), also historically called the pygmy chimpanzee (less often the dwarf chimpanzee or gracile chimpanzee ), is an endangered great ape and one of the two species making up the genus Pan (the other being the common chimpanzee, Pan troglodytes ). [4]
2 天前 · Structure of a typical L-alpha-amino acid in the "neutral" form Amino acids are organic compounds that contain both amino and carboxylic acid functional groups.[1] Although over 500 amino acids exist in nature, by far the most important are the 22 α-amino acids incorporated into proteins.[2] Only these 22 appear in the genetic code of life.[3 ...
2 天前 · Stephen William Hawking, CH, CBE, FRS, FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge.[6][17][18] Between 1979 and 2009, he was the Lucasian Professor of Mathematics at Cambridge, widely ...
2024年6月20日 · In mathematics, the gamma function (represented by Γ, the capital letter gamma from the Greek alphabet) is one commonly used extension of the factorial function to complex numbers. The gamma function is defined for all complex numbers except the non-positive integers. For every positive integer n, Γ ( n ) = ( n − 1 ) ! . {\displaystyle ...
2024年6月14日 · The Legendre transformation is an application of the duality relationship between points and lines. The functional relationship specified by can be represented equally well as a set of points, or as a set of tangent lines specified by their slope and intercept values. Understanding the Legendre transform in terms of derivatives.
1 天前 · Tigris regalis Gray, 1867. The tiger ( Panthera tigris) is the largest living cat species and a member of the genus Panthera native to Asia. It has a powerful, muscular body with a large head and paws, a long tail, and orange fur with black, mostly vertical stripes.
6 天前 · Given two linearly independent vectors a and b, the cross product, a × b (read "a cross b"), is a vector that is perpendicular to both a and b, [1] and thus normal to the plane containing them. It has many applications in mathematics, physics, engineering, and computer programming.
