1 files changed, 26 insertions, 0 deletions
diff --git a/62/CH6/EX6.4/ex_6_4.sce b/62/CH6/EX6.4/ex_6_4.sce
new file mode 100755
index 000000000..afdcc7cff
--- /dev/null
+++ b/62/CH6/EX6.4/ex_6_4.sce
@@ -0,0 +1,26 @@
+clear;
+close;
+clc;
+T0=10;
+w0=%pi/5;
+y=[ones(1,5) zeros(1,5)];
+n=-20:19;
+x=[];
+for i=1:length(n)/T0
+    x=[x y];
+end
+plot2d3(n,x);
+plot(n,x,'r.')
+xtitle('x[n]','n')
+for k=0:9
+     c(k+1)=0;
+    for n=0:4
+       c(k+1)=c(k+1)+ (1/4)*(y(n+1))*(%e)^(%i*w0*k*n);
+    end
+end
+c=[c($:-1:2) ;c];
+k=-9:9;
+figure
+plot2d3(k,abs(c));
+plot(k,abs(c),'r.--')
+xtitle('|ck|','k')
+\ No newline at end of file