initial commit / add all books

2 files changed, 22 insertions, 0 deletions

diff --git a/182/CH9/EX9.13/9_13.txt b/182/CH9/EX9.13/9_13.txt
new file mode 100755
index 000000000..9a3473bc7
--- /dev/null
+++ b/182/CH9/EX9.13/9_13.txt
@@ -0,0 +1,5 @@
+for fH=20 MHz,

+trd=27 ns

+for fH=50 MHz,

+trd=22 ns

+ 
\ No newline at end of file
diff --git a/182/CH9/EX9.13/example9_13.sce b/182/CH9/EX9.13/example9_13.sce
new file mode 100755
index 000000000..bb1fe36d7
--- /dev/null
+++ b/182/CH9/EX9.13/example9_13.sce
@@ -0,0 +1,17 @@
+// to determine the raise time  displayed waveform

+// example9-13 in page 279

+clc;

+// Data given

+fH=[20e+6 50e+6];// upper cut-off frequency in hertz

+tri=21D-9;// input raise time in seconds

+// calculation

+for n=1:2

+    tro=0.35/fH(n);// tro is the raise time in seconds

+    trd=sqrt(tri^2+tro^2);// trd is the fall time in seconds

+    printf("for fH=%d MHz,\ntrd=%d ns\n",fH(n)/10^6,trd*10^9);

+end

+//result

+//for fH=20 MHz,

+//trd=27 ns

+//for fH=50 MHz,

+//trd=22 ns
\ No newline at end of file