GDI Sources of Error

• Three primary sources of error in GDI method

1

Stochastic error

Quantify via propagation of error using confidence limits of simulation averages

Finite step of integrator

• Smaller step

• Integrate series with every-other datum

• Compare predictor and corrector values

Stability

• Stability can be quantified

• Error initial condition can be corrected even after series is complete

1

2

True curve

?

Incorrect initial condition

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