Ignorable Coordinate

ignorable coordinate

[ig′nȯr·ə·bəl kō′ȯrd·ən·ət] (mechanics) cyclic coordinate

Ignorable Coordinate

a generalized coordinate of a mechanical system that does not appear in the system’s Lagrangian function or other characteristic functions. The presence of ignorable coordinates simplifies the integration of the corresponding differential equations of motion of a mechanical system. For example, if the coordinate q₁, does not appear in the Lagrangian function L, the Lagrange equation

takes the form

and immediately yields the integral

单词	ignorable coordinate
释义	Ignorable Coordinate ignorable coordinate [ig′nȯr·ə·bəl kō′ȯrd·ən·ət] (mechanics) cyclic coordinate Ignorable Coordinate a generalized coordinate of a mechanical system that does not appear in the system’s Lagrangian function or other characteristic functions. The presence of ignorable coordinates simplifies the integration of the corresponding differential equations of motion of a mechanical system. For example, if the coordinate q₁, does not appear in the Lagrangian function L, the Lagrange equation takes the form and immediately yields the integral
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