Mambo Toolbox Functions


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Undo — Undo last change to global variables [maple]

Reference: Appendix B in Multibody Mechanics and Visualization by Harry Dankowicz, published by Springer Verlag UK, 2004.

Calling Sequence

Undo()

Description

The procedure Undo undoes any changes to the global variables that resulted from the previous function call. It has no effect on other variables that the user may have defined using objects stored in the global variables.

Examples

>Restart():
>print(GlobalObserverDeclarations);

$table ([])$

>DeclareObservers(A,B):
>print(GlobalObserverDeclarations);

$table ([A = \{\}, B = \{\}])$

>Undo():
>print(GlobalObserverDeclarations);

$table ([])$

See Also

Restart

Toolbox functions

&**, &++, &--, &xx, &oo &>, &>=, &<, &<=, &==, &!= AngularMomentum AngularVelocity CoeffExtract DeclareObservers DeclarePoints DeclareStates DeclareTriads DefineNeighbors DefineObjects DefineObservers DefinePoints DefineTriads DiffTime Express FindCoordinates FindOrientation FindPosition FindRotation FindTranslation ForceDescription GeometryOutput LinearMomentum LinearVelocity MakeDescription MakeRotations MakeTranslations MomentumDescription MotionOutput NullVector Restart Simplify Undo VectorLength VelocityDescription