In general, when an event progresses over time according to a certain law, the task of expressing this progress quantitatively as a function of time is referred to in a broad sense as mechanics, and we consider the case where this law is expressed as an ordinary differential equation of the variable x (which is not limited to one, so is expressed as a vector) that represents the event over time t : d x / dt = f μ ( x ) … (1) The subscript μ of f denotes a parameter that can change depending on external conditions, and is used to examine how the solution to equation (1) fluctuates due to these changes. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
一般に,事象が一定の法則に従って時間的に推移するとき,これを定量的に時間の関数として表す課題を広い意味で力学と呼ぶことにし,その法則が,事象を表す変数x(一つとは限らないのでベクトルで表す)の時間tに関する常微分方程式, dx/dt=fμ(x) ……(1) の形で示される場合を考える。fの添字μは外的な条件によって変化しうるパラメーターを意味し,方程式(1)の解がその変化によって受ける変動のようすを調べるのに用いられる。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
>>: Nonlinear equations - nonlinear equations
Formerly called Echizen Plain. A plain in northern...
On March 20, 1926, during the First Kuomintang-Co...
...A book in the form of a book made by stamping ...
…A Korean civil servant and writer of the Yi Dyna...
1893-1964 Leader of the Italian Communist Party. H...
A literary movement started in late 17th-century I...
…In 1902, he formed the Irish National Theatre As...
This refers to the activities of lawyers, governme...
A bird of the Anatidae family (illustration). It i...
A calligrapher and monk from the mid-Tang Dynasty...
...Among them, the Socialist Revolutionary Allian...
…a financial institution that collects short-term...
Because liquids and gases do not have an inherent...
...If there is no particular craftsman in a villa...
A permanent shrine set up inside each home. There...