Texas Instruments TI-80 Calculator User Manual


 
Index I-1
A
a
variable, 9
-
15 to 9
-
17, A
-
26
a
À
b
º
c MODE
, 1
-
9, 1
-
11, 3
-
4, A
-
2
8
a
À
b
º
c
, 3
-
8, 3
-
9, A
-
2
ABS
, 2
-
6, A
-
2
Absolute value, 2
-
6, A
-
2
Accuracy, 4
-
12, B
-
8, B
-
9
Addition:
+
, 2
-
4, A
-
2
ALPHA
,
ALPHA-LOCK
, 1
-
8
Angle entry indicators (
¡
,
r
), 2
-
14,
A
-
2, A
-
14
ANGLE
menu, 2
-
14, 2
-
15
Angle
MODE
, 1
-
11
ANS
, 6, 1
-
16, 8
-
2, 10
-
4
APD, 1
-
2
Applications
Box with lid, 7 to 13
Building height and city size,
9
-
2 to 9
-
7
Compound interest, 5 , 6
Generating a sequence, 8
-
2
Graphing a circle, 4
-
2
Graphing inequalities, 11
-
14
Graphing the inverse of a function,
11
-
10 to 11
-
11
Graphing a piecewise function,
11
-
12 to 11
-
13
Graphing a polar equation,
11
-
15
Guess the coefficients, 11
-
16
Lottery chances, 2
-
2
Newton’s numerical solve routine,
11-4 to 11
-
5
Numerical integration,
11
-
6 to 11
-
7
Probability experiments: coins, dice,
and spinners, 11
-
2
Path of a ball, 5
-
2
Rolling a die, 10
-
2 to 10
-
3
Roots of a function, 6
-
2
Shading a graph, 7
-
2
Unit circle and trig curves, 11
-
3
Windows variables store and recall,
11
-
8 to 11
-
9
Working with fractions, 3
-
2 to
3
-
3
Arcsine, arccosine, arctangent.
See
SIN
-1
,
COS
-1
,
TAN
-1
Argument, x
A
(Cont.)
ARGUMENT
error, B
-
11
Arrow keys, 1
-
8
Automatic Power Down, 1
-
2
AUTOSIMP MODE
, 1
-
9, 1
-
11, 3
-
4, A
-
2
Axes (graphing), 4
-
9
B
b
variable, 9
-
15 to 9
-
17, A
-
26
Batteries, 1
-
2, 1
-
3, B
-
2 to B
-
7
b
º
c MODE
, 1
-
9, 1
-
11, 3
-
4, A
-
2
8
b
º
c
, 3
-
9, A
-
2
BOX
(
VARS
) menu, 1
-
19, 9
-
17
BOX
plot, 9
-
19 to 9
-
21
Break, 1
-
7, 10
-
4, B
-
11
BREAK
error, B
-
11
Busy indicator, 1
-
5, B
-
10
C
c
variable, 9
-
17, A
-
26
Calling other programs, 10
-
10, 10
-
14
Canceling a menu, 4, 1
-
18
CHECK RAM
screen, 12
-
2
Circles, 4
-
2
Clearing, 1
-
8
display, 4,1
-
8
drawing, 7
-
12
expression, 1
-
8
Home screen, 1
-
8
list, 9
-
2, 9
-
11, 9
-
13, A
-
2
menu, 4, 1
-
18
Cursor coordinates, 4
-
12
CLRDRAW
, 4
-
11, 7
-
3, 7
-
12, A
-
2
CLRHOME
, 10
-
2, 10
-
13, A
-
2
CLRLIST
, 9
-
2, 9
-
11, 9
-
13, A
-
2
Coefficients (regression equation),
9
-
15 to 9
-
17
Combinations (probability), 2
-
13,
A
-
10
Commands, x, 10
-
4 to 10
-
6
Compare, 2
-
16
Concatenating commands, 1
-
6, 1
-
15
CONNECTED MODE
, 1
-
9, 1
-
11, 4
-
4,
A
-
3
Contrast setting, 3, 1
-
3
Index