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

---
 40/CH8/EX8.19/Exa_8_19.sce | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100755 40/CH8/EX8.19/Exa_8_19.sce

(limited to '40/CH8/EX8.19')

diff --git a/40/CH8/EX8.19/Exa_8_19.sce b/40/CH8/EX8.19/Exa_8_19.sce
new file mode 100755
index 000000000..77fcc0e9e
--- /dev/null
+++ b/40/CH8/EX8.19/Exa_8_19.sce
@@ -0,0 +1,10 @@
+//using DFT to find IDFT
+XDFT=[4;-2*%i;0;2*%i];
+XDFTc=[4;2*%i;0;-2*%i];
+w=exp(-%i*%pi/2);
+for i=1:4
+    for j=1:4
+        WN(i,j)=w^((i-1)*(j-1));
+    end
+end
+xn=1/4*(WN*XDFTc)
\ No newline at end of file
-- 
cgit