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Section 2.3 Logical Values & Statements
Writing good code often means making decisions based on the values you are working with. For example, suppose
gift_card_balance stores the amount of money on an Amazon gift card and
total_due stores the price of a purchase. Before completing the purchase, your program needs to ask a yes-or-no question: “Is
gift_card_balance greater than or equal to
total_due?”
Questions like this are called
logical statements , and their answers are called
logical values . In MATLAB, logical values are the two special values
true and
false. In this section, we will learn how MATLAB represents these answers, how to build questions using relational operators, and how to combine and negate questions to express more complicated conditions.
