The calculator has
a specific key for entering a square, i.e., an exponent of 2. This key is indicated
below:

It is important to
remember that in squaring a negative number, the negative must be inside of
parentheses. Notice the difference between
and
as entered below:

Warning: When
the key is pressed, only the power appears on the screen. In order to enter , first press 2, then press .

Other exponents may
be entered using the ^ key. For example,
is entered as:

If there are more than one factor or term in the exponent, we will need to use paratheses. For example, 5^{2+3}^{ }must be entered as 5 ^ (2+3):