state variable

Japanese: state variable(英語表記)statevariable
state variable

...The past circumstances under which the current position and speed or the amount of money invested were reached do not affect future behavior. In this way, when it is sufficient to know the current values ​​of several variables and the effects that will be applied from the outside in the future to predict the future behavior of an object or phenomenon, in other words, when the current values ​​of several variables represent the aggregated effects of all the effects in the past history that affect future behavior, those variables are called state variables. State variables can be continuous quantities, such as position and speed, or discrete quantities, such as the amount of money invested. ...

*Some of the terminology explanations that mention "state variable" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…現在の位置と速度ないし投入済金額が過去のどういう経緯で到達されたものであるかは,今後のふるまいに影響を及ぼさない。このように,ある事物や現象の将来のふるまいを予測するために,いくつかの変数の現在値と将来外部から加えられる作用とを知れば足りるとき,いいかえるといくつかの変数の現在値が過去の履歴のうち,将来のふるまいに影響を及ぼす効果のすべてを集約して表現するものであるとき,それらの変数を状態変数state variableという。状態変数は,位置や速度のように連続量のこともあり,投入済金額のように離散的な量のこともある。…

※「state variable」について言及している用語解説の一部を掲載しています。

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

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