1 files changed, 38 insertions, 0 deletions
diff --git a/260/CH3/EX3.18/3_18.sce b/260/CH3/EX3.18/3_18.sce
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index 000000000..5b97f3187
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+//Eg-3.18
+//pg-119
+
+clear
+clc
+ 
+ A=[1.11 -.55 0;-.55 2.44 -.66;0 0 1];
+ B=[-93.33;213.34;-25];
+ 
+ es=10^-5;
+ imax=10;
+ 
+ X=[0;0;0];
+ [r,c] = size(A)
+ n = r;
+ iter=1;
+ lambda=1;
+ 
+ while iter<imax//condition for termination
+    for i=1:n
+        summ=B(i);
+        pivot=A(i,i);
+        if pivot==0
+            error('gsie not applicable');//to avoid a/0 forms
+        end
+        old=X(i);
+        for j=1:n
+            if i~=j
+                summ=summ-A(i,j)*X(j);
+            end
+        end
+            X(i)=(lambda*summ/pivot)+(1-lambda)*old;//relaxation
+    end
+    iter=iter+1;
+end
+
+disp("Solution after 10 iterations")
+disp(X)
+\ No newline at end of file