The following truth table characterizes the output for the AND and OR functions behaves for the two inputs A and B. In this text, the AND operator will be shown by the * symbol (A*B) , and the OR oper...The following truth table characterizes the output for the AND and OR functions behaves for the two inputs A and B. In this text, the AND operator will be shown by the * symbol (A*B) , and the OR operator by the + symbol (A+B) . The * is often dropped, as in algebra (e.g. The XOR is often called an odd function, in that it is true (1) when there is an odd number of inputs to the function which are 1, and false when there is an even number of inputs to the function which are 1.