TI-83 Basics
The home
screen is where you perform basic arithmetic and ask your calculator to perform
“mini-programs” (ex: Median(L1) will calculate the median
of List 1).
2nd
®Quit will always return you to the Home Screen
Important
notes:
·
To access anything written in yellow, press the 2nd
key.
·
Your calculator follows the order of operations
strictly. Make sure you use parenthesis
around operations you want performed first.
·
Your calculator does not think a minus sign is a
negative sign. Use – for
subtraction and (-) for negation.
Rather than
manually calculating statistics, the TI-83 has many “mini-programs” that can
assist you. But first, you will need to
enter data into your calculator on a LIST which looks a lot like a
spread sheet.
STAT®Edit will access the lists.
Important Notes:
·
To remove all the entries from your list, cursor to
the top of the list to highlight the name of the list and press Clear. Do NOT press Delete
or it will delete the entire list instead of just the numbers!
·
To replace a deleted list, go to the top of any list
and press Insert. You will then
need to name the list. You may access
all the list names by pressing the 2nd button and the number
of the list. (ex: 2nd ®1 will access L1)
Before
asking the calculator to perform any operations on the list you should go to
the Home Screen. When on the Home Screen
you can then access most statistics in using the STAT or 2nd
STAT button. You are asking the
calculator to run a “mini-program” such as finding the median of a list of
numbers. When you select a
“mini-program” it places the words wherever your cursor was before requesting
the program. That’s why you start on the
Home Screen! For example, find the median would put this on the Home Screen:
median(
You must now tell the calculator on which list to find the
median. If it’s List 1 then press 2nd
®1 and the
calculator will print
median(L1
Just close the parenthesis and hit
ENTER. The median will be displayed.