initial commit / add all books

2 files changed, 20 insertions, 0 deletions

diff --git a/1670/CH2/EX2.6/2_6.pdf b/1670/CH2/EX2.6/2_6.pdf
new file mode 100755
index 000000000..a2dfdd580
--- /dev/null
+++ b/1670/CH2/EX2.6/2_6.pdf
diff --git a/1670/CH2/EX2.6/2_6.sce b/1670/CH2/EX2.6/2_6.sce
new file mode 100755
index 000000000..a1bb3aa0e
--- /dev/null
+++ b/1670/CH2/EX2.6/2_6.sce
@@ -0,0 +1,20 @@
+//Example 2.6

+//Secant Method

+//Page no. 19

+clc;clear;close;

+deff('x=f(x)','x=cos(x)-x*exp(x)')

+deff('x=f1(x)','x=-sin(x)-exp(x)-x*exp(x)')

+printf('n\txn\t\tf(xn)\t\tXn+1\t\tf(Xn+1)\t\tXn+2\t\tError\n')

+printf('----------------------------------------------------------------------------------------------------------\n')

+x0=0;x1=1;e=0.00001

+for i=1:6

+    x2=x1-f(x1)*(x1-x0)/(f(x1)-f(x0))

+    e1=abs(x0-x2)

+    printf(' %i\t%.10f\t%.10f\t%.10f\t%.10f\t%.10f\t%.10f\n',i-1,x0,f(x0),x1,f(x1),x2,e1)

+    x0=x1;

+    x1=x2

+    if abs(x0)<e then

+        break;

+    end

+end

+printf('\n\nTherefore, the root is %.4f correct upto 4 decimal places',x2)
\ No newline at end of file