1718lesson

coderpyaephyothant · coderpyaephyothant · commit e7bb3a8ab7cb · 2024-02-04T10:49:09.000+06:30
diff --git a/1718lesson.py b/1718lesson.py
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+# Logical Operators
+# p = True
+# print('not p value is : ', not p)
+
+# Lesson18
+# Bitwise Operators
+#       Bitwise operators are used to compare (binary) numbers:
+
+# Bitwise AND
+a = 60
+b = 13
+c = 0
+c = a & b
+# print('bitwise and operation', c)
+
+#    60 /2 & 13/2 ,    2|60 - 0                     2|13 -1
+#                  2|30 - 0                      2|6 - 0
+#                     2|15 - 1                    2|3 -1 
+#                        2|7 - 1                   2|1
+#                          2|3 - 1
+#                            2|1
+                            # 1 1 1 1 0 0           # 1 1 0 1
+                            # 0 0 1 1 0 1    
+        #    Ans Bitwise &       0 0 0 0 1 1 0 0  = 12
+
+
+# Bitwise OR
+e = 60
+f = 13
+g = 0
+g = e | f
+# print('bitwise or operation', g)
+
+#                   111100
+#                   001101
+# Ans Bitwise |          00111101 = 61
+
+
+# Bitwise Nor
+a = ~ 10
+# print('Bitwise Nor', a)
+# format => - (num + 1 )
+
+# decimal to binary      2|10 - 0
+                        #    2|5 - 1
+                            # 2|2 -0
+                            #   2|1 
+                            #  1010 (need to add 1)
+                            #  -(1011)
+
+# Two's complement
+# 10 => 1010
+#   inverse => 0101 
+#    plus one =>       0110
+#  and then change plus to minus , minus to plus
+
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