From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 50/CH4/EX4.23/ex_4_23.sce | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100755 50/CH4/EX4.23/ex_4_23.sce

(limited to '50/CH4/EX4.23/ex_4_23.sce')

diff --git a/50/CH4/EX4.23/ex_4_23.sce b/50/CH4/EX4.23/ex_4_23.sce
new file mode 100755
index 000000000..e06601bef
--- /dev/null
+++ b/50/CH4/EX4.23/ex_4_23.sce
@@ -0,0 +1,26 @@
+// example: 4.23;
+// piecewise cubical interpolating polinomials:
+
+X=[-3 -2 -1 1 3 6 7];
+F=[369 222 171 165 207 990 1779];
+//  we need to apply legranges interpolation in sub-ranges [-3 ,1];[1,7];
+
+
+ x=poly(0,"x");
+ 
+  // 1) in the range [-3,1]
+  x=[-3 -2 -1 1];
+  f=[369 222 171 165];
+  n=3;
+P2=lagrangefundamentalpoly(x,f,n);
+
+ // 2) in the range [1,7]
+ x=[1 3 6 7];
+ f=[165 207 990 1779];
+n=3;
+P2=lagrangefundamentalpoly(x,f,n) 
+
+ 
+ 
+ // hence, 
+ disp('f(6.5)=1339.25');
\ No newline at end of file
-- 
cgit