For an algebraic multi-grid approach, the residual in the k^th level is __________(a) residual in the (k+1)^th level(b) summation of the residuals in the (k)^th level(c) residual in the (k-1)^th level(d) summation of the residuals in the (k-1)^th levelI got this question in final exam.The question is from Numerical Methods topic in chapter Numerical Methods of Computational Fluid Dynamics

For an algebraic multi-grid approach, the residual in the k^th level i

1.	For an algebraic multi-grid approach, the residual in the k^th level is __________(a) residual in the (k+1)^th level(b) summation of the residuals in the (k)^th level(c) residual in the (k-1)^th level(d) summation of the residuals in the (k-1)^th levelI got this question in final exam.The question is from Numerical Methods topic in chapter Numerical Methods of Computational Fluid Dynamics
Answer» Correct choice is (d) SUMMATION of the residuals in the (k-1)^th level Easy explanation: While transferring the errors from ONE level to ANOTHER, the RESIDUAL of the k^th level is given by the summation of the residuals of all the terms in the previous (k-1)^th level.

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