Dummy Variable -- from Wolfram MathWorld

Dummy Variable -- from Wolfram MathWorld

瀏覽:1398
日期:2025-07-01
A variable that appears in a calculation only as a placeholder and which disappears completely in the final result. For example, in the integral int_0^xf(x^')dx^', x^' is a dummy variable since it is "integrated out" in the final answer. Any variable name...看更多