ExplicitDifference Integrator
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The ExplicitDifference integrator is an explicit time integration method for dynamic analysis.

Description
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This integrator is particularly suitable for:

* Dynamic problems requiring computational efficiency
* Impact and blast analyses
* Wave propagation problems
* Cases where the time step is limited by physics rather than stability
* Short-duration dynamic events

The ExplicitDifference method advances the solution without solving a system of equations at each time step, making it computationally efficient for each step.

Parameters
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This integrator has no parameters.

Usage Example
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.. code-block:: python

    # Create an ExplicitDifference integrator
    integrator = fm.analysis.integrators.create_integrator("explicitdifference")