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+//Book - Power System: Analysis & Design 5th Edition
+//Authors - J. Duncan Glover, Mulukutla S. Sarma, and Thomas J. Overbye
+//Chapter - 6 ; Example 6.7
+//Scilab Version - 6.0.0 ; OS - Windows
+
+clc;
+clear;
+
+c=[15;50];                       //Constant coefficients in the equations
+x=[4;9];                         //Initial values for x1 and x2
+
+err=1;                           //Initialization of error value
+tol=1e-4;                        //Tolerance value for Newton Raphson method
+iter=0;                          //Initialization of iteration value
+
+while err>tol
+    temp=x;
+    f=[x(1)+x(2);x(1)*x(2)]              //Function Value
+    J=[1 1;x(2) x(1)];               //Jacobian Matrix
+    x=x+inv(J)*(c-f)
+    err=max(abs((x(1)-temp(1))/temp(1)),abs((x(2)-temp(2))/temp(2)));
+    iter=iter+1;    
+end
+printf('The convergence criterion is satisfied at the %dth iteration\n',iter)
+printf('The solution is x1=%.4f and x2=%.4f',x(1),x(2))