1 files changed, 41 insertions, 0 deletions
diff --git a/260/CH7/EX7.9/7_9.sce b/260/CH7/EX7.9/7_9.sce
new file mode 100644
index 000000000..3ee7180cc
--- /dev/null
+++ b/260/CH7/EX7.9/7_9.sce
@@ -0,0 +1,41 @@
+//Eg-7.9
+//pg-355
+
+clear
+clc
+
+y = [2 9 24 47 78];
+
+t = [0 1 2 3 4];
+
+//since P0 = 1 b0 will be as
+
+P0 = [1 1 1 1 1];
+b0 = sum(y)/5;
+
+//P1 = t-G1
+
+G1 = sum(t)/5;
+
+//b1 = summation(P1*y)/summation(P1^2)
+
+P1 = t - [G1 G1 G1 G1 G1];
+
+b1 = sum(P1.*y)/sum(P1^2);
+
+
+//P2 = (t-G2)P1 - d2
+
+//G2 = summation(t*P1^2)/summation(P1^2)
+
+G2 = sum(t.*P1^2)/sum(P1^2);
+
+//d2 = summation(t*P1*P0)/summation(P0^2)
+
+d2 = sum(t.*P1.*P0)/sum(P0^2);
+
+P2 = (t-[G2 G2 G2 G2 G2]).*P1 - [d2 d2 d2 d2 d2]
+
+b2 = sum(P2.*y)/sum(P2^2);
+
+printf('Therefore the expression is V = (%f)P0 + (%f)P1 + (%f)P2,\n where P0 = 1, P1 = (t-2), P2 = (t-2)\n\n Finally V = 4*t^2 + 3*t + 2\n\n',b0,b1,b2)
+\ No newline at end of file