1 files changed, 23 insertions, 0 deletions
diff --git a/260/CH4/EX4.2/4_2.sce b/260/CH4/EX4.2/4_2.sce
new file mode 100644
index 000000000..4b0c67a63
--- /dev/null
+++ b/260/CH4/EX4.2/4_2.sce
@@ -0,0 +1,23 @@
+//Eg-4.2
+//pg-143
+
+clear
+clc
+
+xl=0;
+xu=1;
+for i=1:20
+    fl=xl-cos(xl);
+    fu=xu-cos(xu);
+    rt=(xl+xu)/2;
+    fr=rt-cos(rt);
+    if fl*fr<0 then
+        xu=(xl+xu)/2;
+    elseif fr*fu<0 then
+        xl=(xl+xu)/2;
+    else
+        rt=(xl+xu)/2; 
+    end
+   
+end
+printf('The solution after 20 iterations is %f',rt)