Lecture 2 Notes

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Unformatted text preview: p(‘Yes’) end Insight Through Computing Solution Fragment xc = -b/2; if (L <= xc) && (xc <= R) disp(‘Yes’) else disp(‘No’) end Insight Through Computing Boolean Expressions The if-else Construct boolean expression if Commands to execute if the expression if TRUE else Commands to execute if the expression if FALSE end Insight Through Computing (xc < L) || (R < xc) Their value is either true or false. Made up of comparisons that are either true or false. Connected by logical operators: and (&&) , or (||), not (~) Insight Through Computing Relational Operators Arithmetic Expressions (x+3)*(y-z) Their value is a number. Made up of other (simpler) arithmetic expressions that are connected by arithmetic operators: + , - . * . / Insight Through Computing < > <= >= == ~= Less than Greater than Less than or equal to Greater than or equal to Equal to Not equal to Insight Through Computing 14 1/28/14 The And Operator && The Or Operator || && - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - F F F F T...
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