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//Example 11// Ch 2
clear all
clc
close
phi1=0;
phi3=10;
phir=[phi1;phi3];
sl=[1.25 -0.014;-0.014 0.8381]; //elements of global stiffness matrix
sr=-[-0.7786 -0.4571;-0.4571 -0.3667];//elements of global stiffness matrix
phil=inv(sl)*sr*phir
printf('value of potentials at the nodes are %f \n',phil)
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