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1 dzień temu · Definition. Consider a matrix A and a nonzero vector .If applying A to (denoted by ) simply scales by a factor of λ, where λ is a scalar, then is an eigenvector of A, and λ is the corresponding eigenvalue. This relationship can be expressed as: =. There is a direct correspondence between n-by-n square matrices and linear transformations from an n-dimensional vector space into itself, given ...
1 dzień temu · Johann Carl Friedrich Gauss (German: Gauß [kaʁl ˈfʁiːdʁɪç ˈɡaʊs] ⓘ; Latin: Carolus Fridericus Gauss; 30 April 1777 – 23 February 1855) was a German mathematician, astronomer, geodesist, and physicist who contributed to many fields in mathematics and science. He was director of the Göttingen Observatory and professor of astronomy from 1807 until his death in 1855.
6 godz. temu · A "third edition" was published in 1946 by Methuen (London), but it is identical except for a change in pagination. The true third, fourth and fifth editions appeared in 1950, 1953 and 1956, respectively. In the 3rd, Einstein added Appendix II on a generalized theory of gravitation, which was substantially revised for the fifth and final edition.
6 godz. temu · The iron atom of heme has six coordination bonds: four in the plane of heme, and bonded to the flat porphyrin ring system, and two are perpendicular to the porphyrin ring (Fig. 14B).
1 dzień temu · Zurich (⫽ ˈ zj ʊər ɪ k ⫽ ⓘ ZURE-ik; German: Zürich, pronounced [ˈtsyːrɪç] ⓘ; see below) is the largest city in Switzerland and the capital of the canton of Zurich.It is located in north-central Switzerland, at the northwestern tip of Lake Zurich.As of January 2023 the municipality had 443,037 inhabitants, the urban area 1.315 million (2009), and the Zurich metropolitan area 1. ...
1 dzień temu · Sumerian (Sumerian: 𒅴𒂠, romanized: Emeg̃ir, lit. ''native language'') was the language of ancient Sumer.It is one of the oldest attested languages, dating back to at least 2900 BC.It is a local language isolate that was spoken in ancient Mesopotamia, in the area that is modern-day Iraq.. Akkadian, a Semitic language, gradually replaced Sumerian as the primary spoken language in the area ...
6 godz. temu · Motor DevelopmentOtteroo Aquatic Experience Accelerates Motor Development During the First 18 Months of LifeDavid I. Anderson, San Francisco State University; Minxuan He, University of MarylandThe rate of motor skill acquisition during infancy is particularly sensitive to experience. Variations in c...
