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Hace 1 día · The fourth power of the norm of a quaternion is the determinant of the corresponding matrix. The scalar part of a quaternion is one quarter of the matrix trace. As with the 2 × 2 complex representation above, complex numbers can again be produced by constraining the coefficients suitably; for example, as block diagonal matrices with two 2 × 2 blocks by setting c = d = 0 .
Hace 1 día · ISO 3166-1 ( Codes for the representation of names of countries and their subdivisions – Part 1: Country codes) is a standard defining codes for the names of countries, dependent territories, and special areas of geographical interest. It is the first part of the ISO 3166 standard published by the International Organization for Standardization .
Hace 9 horas · Southwest monsoon subdued in Kerala, except north, with below normal rainfall forecast till July 18; isolated heavy spells expected.
Hace 1 hora · Hurricane Beryl: Heavy rain expected in parts of North Texas after it makes landfall. 00:01 05:00. Daily rain chances and highs close to, or even below, normal for at least a week. Author: wfaa ...
Hace 9 horas · After studying for two years the mysterious green auroras - which appeared on Christmas Day in the Arctic in 2022 - the Japanese and US-based researchers have now found out that it occurred because of a 'rainstorm' of electrons which are directed from the Sun. This was the first time such a rare aurora was witnessed from the Earth and it came when there was a major drop in the gusts of the ...
Hace 1 día · Median hme price Martha’s Vineyard, MA: $1.2m. . . . Anyway business is booming this summer. Last summer was m/l normal. This summer, local retailers say their sales are up about 30%, and that matches the fact that we have a traffic problem (rare, even in summer here.) Wildwood NJ is a drive-to beach town on the south Jersey shore (which is ...
