initial commit / add all books

3 files changed, 18 insertions, 0 deletions

diff --git a/40/CH6/EX6.7b/Exa_6_7b.sce b/40/CH6/EX6.7b/Exa_6_7b.sce
new file mode 100755
index 000000000..8d9b05069
--- /dev/null
+++ b/40/CH6/EX6.7b/Exa_6_7b.sce
@@ -0,0 +1,18 @@
+z=%z;

+s=%s;

+F=0:(0.5/400):0.5;

+s=exp(%i*2*%pi*F);

+H1Z=(z^2+1-0.618*z)/(z^2-0.5857*z+0.898);

+for i=1:401

+    H1(i)=(s(i)^2+1-0.618*s(i))/(s(i)^2-0.5857*s(i)+0.898);

+end

+H1=abs(H1);

+plzr(H1Z);

+a=gca();

+xset('window',1);

+a.x_location="origin";

+a.y_location="origin";

+plot2d(F,H1)

+xlabel('Digital frequency F');

+ylabel('magnitude');

+xtitle('Magnitude spectrum of bandpass filter');

diff --git a/40/CH6/EX6.7b/Exa_6_7b_0.jpg b/40/CH6/EX6.7b/Exa_6_7b_0.jpg
new file mode 100755
index 000000000..db9eb323e
--- /dev/null
+++ b/40/CH6/EX6.7b/Exa_6_7b_0.jpg
diff --git a/40/CH6/EX6.7b/Exa_6_7b_1.jpg b/40/CH6/EX6.7b/Exa_6_7b_1.jpg
new file mode 100755
index 000000000..7680db94e
--- /dev/null
+++ b/40/CH6/EX6.7b/Exa_6_7b_1.jpg