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ansatz
In physics and mathematics, an ansatz (; , meaning: "initial placement of a tool at a work piece", plural ansätze ; or ansatzes) is an educated guess〔In his book on "The Nature of Mathematical Modelling", Neil Gershenfeld introduces ''ansatz'', with interpretation "a trial answer", to be an important technique for solving differential equations. Gershenfeld 1999, p.10.〕 that is verified later by its results.
==Use==
An ansatz is the establishment of the starting equation(s), the theorem(s), or the value(s) describing a mathematical or physical problem or solution. It can take into consideration boundary conditions. After an ansatz has been established (constituting nothing more than an assumption), the equations are solved for the general function of interest (constituting a confirmation of the assumption).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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