Question

___________ become significant after a repeated number of calculations.

(a) Round-off errors

(b) Discretization errors

(c) Truncation errors

(d) Modelling errors

I had been asked this question during an interview.

I need to ask this question from Discretization Aspects topic in chapter Basic Aspects of Discretization, Grid Generation with Appropriate Transformation of Computational Fluid Dynamics

Answer 1

The correct option is (a) Round-off errors

To explain: Round-off errors are introduced because of the round-off results produced by computers for a particular problem. When these round-off values are used for further calculations, they become significant after a certain time.