Chapter-03 - Approximations and Round-Off Errors Chapter 3...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Approximations and Round-Off Errors Chapter 3 For many engineering problems, we cannot obtain analytical solutions. Numerical methods yield approximate results, results that are close to the exact analytical solution. We cannot exactly compute the errors associated with numerical methods. Only rarely given data are exact, since they originate from measurements. Therefore there is probably error in the input information. Algorithm itself usually introduces errors as well, e.g., unavoidable round-offs, etc … The output information will then contain error from both of these sources . How confident we are in our approximate result? The question is how much error is present in our calculation and is it tolerable?”
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Accuracy. How close is a computed or measured value to the true value Precision (or reproducibility ). How close is a computed or measured value to previously computed or measured values. Inaccuracy
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 12

Chapter-03 - Approximations and Round-Off Errors Chapter 3...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online