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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /260/CH3/EX3.18/3_18.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '260/CH3/EX3.18/3_18.sce')
| -rw-r--r-- | 260/CH3/EX3.18/3_18.sce | 38 |
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 new file mode 100644 index 000000000..5b97f3187 --- /dev/null +++ b/260/CH3/EX3.18/3_18.sce @@ -0,0 +1,38 @@ +//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 |