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. Author manuscript; available in PMC: 2010 Jul 20.
Published in final edited form as: IEEE Trans Biomed Eng. 2009 Jun 16;57(2):220–237. doi: 10.1109/TBME.2009.2024928

Fig. 3.

Fig. 3

Refining the volume conductor eliminates the extra ill-conditioning induced by the discretization. The three meshes have the same boundary resolutions: 105 nodes on the torso and 60 nodes on the heart. (A) Mesh with 1045 elements, 665 nodes. (B) 1325 elements, 805 nodes. (C) 1629 elements, 957 nodes. (D) Singular values of N and AI H. (E) Singular values of K.