1 files changed, 38 insertions, 0 deletions
diff --git a/3860/CH3/EX3.19/Ex3_19.txt b/3860/CH3/EX3.19/Ex3_19.txt
new file mode 100644
index 000000000..5ea43bf30
--- /dev/null
+++ b/3860/CH3/EX3.19/Ex3_19.txt
@@ -0,0 +1,38 @@
+ 
+        a'b' a'b  ab   ab' 
+
+ c'd'    1    1    1    1
+
+ cd'              1    X 
+
+ cd      1   1         1
+
+ cd'         1    1    1
+
+  From the map, high outputs are for 0,3,5,6,7,9,10,11,12,13,14
+
+   0.   0.   0.   0.
+   0.   0.   1.   0.
+   0.   1.   0.   1.
+   0.   1.   1.   0.
+   0.   1.   1.   1.
+   1.   0.   0.   1.
+   1.   0.   1.   0.
+   1.   0.   1.   1.
+   1.   1.   0.   0.
+   1.   1.   0.   1.
+   1.   1.   1.   0.
+
+  Evaluating expression from truth table and map 
+
+!a'b'c' d'  +  a'b'c d'  +  a'bc'd  +  a'bc d'  +  a'bcd  +  ab'c'd  +  ab'c d'  +  ab'cd  +  abc' d'  +  abc'd  +  abc d'  !
+
+ There are 32 different minimum solutions to the given problem. some of them are
+
+ F = a'b'c'd' + a'cd + bc'd + ab'd + abc'+ acd'
+
+ F = a'b'c'd' + a'cd + bc'd + abd' + bcd'+ ab'c
+
+ F = a'b'c'd' + b'cd + a'bd + bcd'+ ab'c+ ab'd
+
+ F = a'b'c'd' + abc' + a'bd + bcd'+ ab'c+ ab'd
+\ No newline at end of file