Report - salimi-s.staffcms.um.ac.irsalimi-s.staffcms.um.ac.ir/imagesm/1343/ 1.pdfNote: Ex2. Ex. n, £y2. Ely, Exy, i, xOn. xOn-1, yOn. yUn—t. A. B and r are respec- tveiy Obtained by presstng

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