Question

This method is robust and has  ________ n iterations.

(a) Diverges

(b) Converges

(c) Converge and diverge

(d) Symmetric

I had been asked this question in an interview.

The query is from Conjugate Gradient Method for Equation Solving in section Matrix Algebra and Gaussian Elimination of Finite Element Method

Answer 1

Right choice is (b) Converges

To elaborate: When we solve a symmetric matrix in conjugate gradient method, it can be simplified in n iterations and also this method is robust and converges “n” no of iterations. Conjugate gradient method can be implemented to optimization of solution.