How should I know, that the solution of equilibrium equations (the calculated displacements) is not affected by the round-off errors?
AxisVM evaluates the condition of the system of equilibrium equations each time you run an analysis. A special technique is used to estimate the error in the results (displacements) due to the round-offs that is present in computer based calculation. The expected error magnitude is displayed in the Info window as E(Eq). If the expected error is less than 10-6, usually the result is considered accurate in “engineering” terms.