We don't provide any internal calculations. However, there are two things you can check to verify a solution:
1) Use the convergence settings (provide maximum number of h-refinements and stop criteria %) and view the convergence plot (verify the solution has converged within the stop criteria)
2) View the reaction forces and moments by RMB on a constraint in the browser => Reaction Forces.
Hope this helps...
If it helps bolster your confidence we run all of our analysis through Algor, SolidWorks and Pro/E as well and get results equivalent to the Inventor results. It is all in properly setting up the analysis.
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