CheckRules 2D/3D• CheckRules is an option for SolveMech that determines whether solution rules passed into SolveMech are assumed to be correct, or are checked against the constraints to see if they constitute a valid solution. • When a list of rules is passed to SolveMech at runtime, the rules are normally used as initial guesses for the next solution attempt. • If CheckRules>False is given with Solution>Velocity, the supplied rules are assumed to constitute a valid location solution and only the velocity solution will actually be calculated. • If CheckRules>False is given with Solution>Acceleration, the supplied rules are assumed to constitute valid location and velocity solutions and only the acceleration solution will actually be calculated. • If CheckRules>False is given with Solution set to Static, Kinematic, or Dynamic, only the Lagrange multipliers will actually be calculated. • The default setting is CheckRules>True. • See also: CheckSystem, StepMech. Further Examples Load the Modeler2D package and define a simple model. Here is a solution to the model at time = 0.2.
Out[2]=  
Here the velocity solution is based on the location solution provided with no validity check. If the location solution sol did not constitute a valid solution to the model, the velocity terms returned here would also be invalid.
Out[3]=  
See HelpModel2D.
