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Euler's identity; Fibonacci's identity see Brahmagupta–Fibonacci identity or Cassini and Catalan identities; Heine's identity; Hermite's identity; Lagrange's identity; Lagrange's trigonometric identities; List of logarithmic identities; MacWilliams identity; Matrix determinant lemma; Newton's identity; Parseval's identity; Pfister's sixteen ...
Some non-western societies have long recognized transgender people as a third gender, though this may not (or may only recently) [3] include internationally recognized ‘legal rights’ for such people. This has much more to do with the nature of the legal system towards gender than the nature of the societies towards it, as referenced by the ...
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Green's functions are also useful tools in solving wave equations and diffusion equations. In quantum mechanics, Green's function of the Hamiltonian is a key concept with important links to the concept of density of states. The Green's function as used in physics is usually defined with the opposite sign, instead.
In the study of ordinary differential equations and their associated boundary value problems in mathematics, Lagrange's identity, named after Joseph Louis Lagrange, gives the boundary terms arising from integration by parts of a self-adjoint linear differential operator. Lagrange's identity is fundamental in Sturm–Liouville theory.
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In others, such as many of the Niger–Congo languages, there is a system of grammatical gender (or noun classes), but the divisions are based on classifications other than sex, such as animacy, rationality, or countability. [3] In Swahili, for example, the independent third person pronoun yeye 'she/he' can be used to refer to a female or male ...
aside three hours and write your answers to the questions in Part Three. Whatever your choice, enjoy the journey! THE TURNING POINT The idea started on New Year’s Day in 1980, when my boyfriend (now my husband), Tim, and I woke up in our flat in London. We’d been working in the U.K. for less than a year and living together only a couple of