Programming with MATLAB

Relational Operators

The arithmetic operators has precedence over relational operators

Logical Operators

Order of precedence for operators

Logical variables Logical variables can take only two values:  <> 0 (true)  0 (false)

The if statement End Start

The if statement If x is greater than or equal 5, the statement y = sqrt(x-5) gets executed Otherwise, the statement does not execute

The if statement The value of z and w are computed only if both x and y are nonnegative. If any of x or y is negative, both w and z retain their initial values

The else statement

If x is nonnegative, y = sqrt(x) is executed If x is negative, an error message is displayed

The elseif statement

Example: Numeric grade to letter grade Write a program to display your course letter grade knowing your numeric grade  Example: If your numeric grade is 93, then the program displays the letter A If your numeric grade is 70, then the program displays the letter C

Nested if statement =

This statement gives the same result as the previous one =

Examples Write a function that accepts one variable, which is the year and returns a logical variable: true (if the year is leap) or false (if the year is not leap) A leap year is characterized by  All years evenly dividable by 400 are leap  All years that are evenly dividable by 4 and are not evenly dividable by 100 are leap

Examples