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

Description
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This integrator is particularly suitable for:

* Wave propagation problems
* Impact analysis
* Highly nonlinear dynamic problems
* Cases where computational efficiency per time step is important
* Systems with distributed mass matrices

The CentralDifference method is a second-order explicit method that computes the response at time t+Δt based on the equilibrium at time t.

Parameters
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This integrator has no parameters.

Usage Example
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.. code-block:: python

    # Create a CentralDifference integrator
    integrator = fm.analysis.integrators.create_integrator("centraldifference")