undetermined multiplier

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DIIS — (direct inversion in the iterative subspace or direct inversion of the iterative subspace), also known as Pulay mixing, is an extrapolation technique. DIIS was developed by Peter Pulay in the field of computational quantum chemistry with the… … Wikipedia
Second class constraints — In a constrained Hamiltonian system, a dynamical quantity is second class if its Poisson bracket with at least one constraint is nonvanishing. A constraint that has a nonzero Poisson bracket with at least one other constraint, then, is a second… … Wikipedia
List of mathematics articles (M) — NOTOC M M estimator M group M matrix M separation M set M. C. Escher s legacy M. Riesz extension theorem M/M/1 model Maass wave form Mac Lane s planarity criterion Macaulay brackets Macbeath surface MacCormack method Macdonald polynomial Machin… … Wikipedia
Magic gun — Magic guns, also called spellguns or casters (presumably short for spellcaster ), are an element of science fantasy (fantasy/science fiction) that combines firearms and magic (or some other supernatural power) to create a weapon with properties… … Wikipedia
Battle to the Southwest of Xiakou — Infobox Military Conflict conflict=Battle to the southeast of Xiakou partof=the wars of the Three Kingdoms caption= date=Winter 208 place= Southeast of Xiakou casus= territory= result=Zhou Yu victory combatant1=Sun Quan combatant2=Cao Cao… … Wikipedia

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