initial commit / add all books

1 files changed, 27 insertions, 0 deletions

diff --git a/964/CH9/EX9.5/9_5.sce b/964/CH9/EX9.5/9_5.sce
new file mode 100755
index 000000000..b73d7fd3d
--- /dev/null
+++ b/964/CH9/EX9.5/9_5.sce
@@ -0,0 +1,27 @@
+clc;

+clear;

+n=3;

+b(1)=7.85;

+b(2)=-19.3;

+b(3)=71.4;

+a=[3 -0.1 -0.2;0.1 7 -0.3;0.3 -0.2 10];

+for k=1:n-1

+    for i=k+1:n

+        fact=a(i,k)/a(k,k);

+        for j=k+1:n

+            a(i,j)=a(i,j)-fact*(a(k,j));

+        end

+        b(i)=b(i)-fact*b(k);

+    end

+end

+x(n)=b(n)/a(n,n);

+for i=n-1:-1:1

+    s=b(i);

+    for j=i+1:n

+        s=s-a(i,j)*x(j)

+    end

+    x(i)=b(i)/a(i,i);

+end

+disp(x(1),"x1=")

+disp(x(2),"x2=")

+disp(x(3),"x3=")