Test Menu

Press to view the test menu.

Press the number associated with a symbol or use the cursor keys to select one and press .

The relationship between any two numbers, expressions, lists, or matrices can be compared by selecting one of the options. A true will be returned if the test is true and a false if the test is false. For example, the test, 4 > 7, returns a value of false since it is a false statement. Tests can also be made on statements such as

x = 9 or x < 2.5

The result of such a test depends upon the value of the variable x. This type of comparison is often used to control the domain over which a graph is drawn.