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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/CH2/EX2.8 | |
| 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/CH2/EX2.8')
| -rwxr-xr-x | 845/CH2/EX2.8/Ex2_8.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/845/CH2/EX2.8/Ex2_8.sce b/845/CH2/EX2.8/Ex2_8.sce new file mode 100755 index 000000000..5ef7cea63 --- /dev/null +++ b/845/CH2/EX2.8/Ex2_8.sce @@ -0,0 +1,24 @@ +//Example 2.8
+clc
+clear
+
+function [f,df] = fun8(x)
+ f = x.^3 - x - 1;
+ df = 3*x.^2 - 1;
+endfunction
+
+xold = 1;
+maxit = 5;
+iter = 1;
+
+while (1)
+ [fx,dfx] = fun8(xold);
+ xnew = xold - fx/dfx;
+ if iter == maxit then
+ break
+ end
+ xold = xnew;
+ iter = iter + 1;
+end
+root = round(xnew*10^4) / 10^4;
+disp(root,"root = ")
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