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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /845/CH3/EX3.1 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '845/CH3/EX3.1')
| -rwxr-xr-x | 845/CH3/EX3.1/Ex3_1.sce | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/845/CH3/EX3.1/Ex3_1.sce b/845/CH3/EX3.1/Ex3_1.sce new file mode 100755 index 000000000..cc74f2226 --- /dev/null +++ b/845/CH3/EX3.1/Ex3_1.sce @@ -0,0 +1,27 @@ +//Example 3.1
+clc
+clear
+
+A = [2 3 -1; 4 4 -3; -2 3 -1]; //Coefficient Matrix
+B = [5; 3; 1]; //Constant Matrix
+
+n = length(B);
+Aug = [A,B];
+
+// Forward Elimination
+for j = 1:n-1
+ for i = j+1:n
+ Aug(i,j:n+1) = Aug(i,j:n+1) - Aug(i,j) / Aug(j,j) * Aug(j,j:n+1);
+ end
+end
+
+// Backward Substitution
+x = zeros(n,1);
+x(n) = Aug(n,n+1) / Aug(n,n);
+for i = n-1:-1:1
+ x(i) = (Aug(i,n+1)-Aug(i,i+1:n)*x(i+1:n))/Aug(i,i);
+end
+disp(strcat(["x = ",string(x(1))]))
+disp(strcat(["y = ",string(x(2))]))
+disp(strcat(["z = ",string(x(3))]))
+
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