initial commit / add all books

2 files changed, 19 insertions, 0 deletions

diff --git a/40/CH5/EX5.9a/Exa_5_9a.jpg b/40/CH5/EX5.9a/Exa_5_9a.jpg
new file mode 100755
index 000000000..f2f0d0e24
--- /dev/null
+++ b/40/CH5/EX5.9a/Exa_5_9a.jpg
diff --git a/40/CH5/EX5.9a/Exa_5_9a.sce b/40/CH5/EX5.9a/Exa_5_9a.sce
new file mode 100755
index 000000000..46f3540d1
--- /dev/null
+++ b/40/CH5/EX5.9a/Exa_5_9a.sce
@@ -0,0 +1,19 @@
+//DTFT and steady state response 

+a=0.5,b=1;F=0.25;

+n=0:(5/1000):5;

+h=(a^n);

+x=10*cos(0.5*%pi*n'+%pi/3);

+H=h*exp(-%i*n'*F);

+Yss=H*x;

+[phase_Yss,m]=phasemag(Yss);

+Yss=real(Yss);

+subplot(2,1,1)

+plot2d(n,Yss);

+xlabel('Frequency in radians')

+ylabel('abs(Yss)')

+title('magnitude Response')

+subplot(2,1,2)

+plot2d(n,phase_Yss)

+xlabel('Frequency in Radians');

+ylabel('<(y)')

+title('Phase Response')
\ No newline at end of file