Texas Instruments TI-83 - Trigonometric Functions; MODE

6 Discovering Algebra Calculator Notes for the Texas Instruments TI-83 and TI-83/84 Plus ©2007 Key Curriculum Press
Note 0G • Entering a Program (continued) TI-83 and TI-83/84 Plus
b. Press and enter the name of the program. You are already in
Alpha-Lock so do not press unless you want to enter a number
into the program’s name.
c. Enter the program exactly as you see it. Lowercase letters in the
commands of the program indicate that you must find this command
on the calculator. You can find many programming commands by
pressing and looking under
CTL and I/O.To find other
commands, functions, and symbols, either look in the menu of the
appropriate calculator key, or press
[CATALOG] and enter the letter
that begins the command you want. (You are in still in alpha mode so
don’t press .) Then arrow to the command and press .
If you enter a command from the calculator keypad using
characters, the letters will all be uppercase. The command won’t look
the same as how it’s been written and it won’t work.
d. Use
[INS] to insert a new line between two lines. Use on
a blank line to delete that line.
e. Press
[QUIT] when you finish entering the program.
Errors
You can edit the program if there is an error or if you need to make a change.
a. Press and arrow to
EDIT.Arrow down to the program and
press .
b. Scroll down through the program to find the error. Studying the entire
program on paper is often easier than working from the calculator
screen where you can only see a small portion at one time. Use
[INS]
or as needed to make changes. Press [QUIT] when finished.
c. If,when you execute a program, you get an error message that has a
Goto option, choose this option. The calculator will automatically
switch to
EDIT mode and scroll to the line with the error. Then proceed
as in step c.
Note 0H • Generating Random Integers
Yo u can generate random integers within an interval using the randInt command.
Press , arrow to
PRB, and select 5:randInt( to access the randInt command.
To randomly generate integers between 1 and 3 inclusive, enter
randInt(1,3).
Pressing will generate as many of these integers as you like.
To randomly generate a particular number of integers in an interval, for
example, four integers between 1 and 3, enter
randInt(1,3,4).
ENTER
MATH
2ndDEL
2nd
ENTER
PRGM
2nd
DEL
ENTER2nd
ALPHA
ENTERALPHA
2nd
PRGM
ALPHA
ENTER
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