Texas Instruments TI30XA - Scientific Calculator User manual

Texas Instruments Holland B.V.
Rutherfordweg 102
3542 CG Utrecht-The Netherlands
Texas Instruments U.S.A.
7800 Banner Dr.
Dallas, TX 75251
D
www.ti.com/calc ti-car[email protected]
© 1998 Texas Instruments
Gedruckt auf Recycling-Papier
30XA/OM/1L5
TI-30Xa/30Xa Solar, English
2.87”
5.38”

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
06/17/99 4:31 PM Printed: 06/17/99 4:32 PM Page 1 of 21
TI-30Xa
and
TI-30Xa SOLAR
Scientific Calculators
Basic Operations
.................................
2
Results
..........................................
3
Basic Arithmetic
..................................
3
Percents
.........................................
4
Fractions
.........................................
5
Powers and Roots
................................
6
Logarithmic Functions
............................
6
Angle Units
.......................................
7
DMS
.............................................
7
Rectangular to Polar
..............................
8
Polar to Rectangular
..............................
8
Trigonometric Functions
..........................
9
Hyperbolic Functions
.............................
9
One-Variable Statistics
............................
10
Probability
........................................
12
Clearing and Correcting
...........................
13
Constants (Repeated Operations)
.................
13
Memory
..........................................
14
Order of Operations
...............................
15
Notation
..........................................
16
Display Indicators
.................................
17
Error Conditions
..................................
18
In Case of Difficulty
...............................
19
Battery Replacement (TI
.
30Xa)
...................
20
TI Product, Service, and Warranty Information
......
21
 1997 Texas Instruments Incorporated

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
06/17/99 4:31 PM Printed: 06/17/99 4:32 PM Page 2 of 21
Basic Operations
TI-30Xa (battery)
¦|
turns on the TI-30Xa.
¦}
turns off the TI-30Xa and clears display,
settings, and pending operations, but not memory.
¦
APD™ (Automatic Power Down™) turns off the
TI-30Xa automatically if no key is pressed for about
5 minutes, but does not clear display, settings,
pending operations, or memory.
Note:
|
after APD retrieves display, pending
operations, settings, and memory.
TI-30Xa Solar
¦
To turn on the TI-30Xa Solar, expose the solar
panel to light and press
!
. Note: Always press
!
to clear the calculator because memory and
display may contain incorrect numbers.
¦
To turn off the TI-30Xa Solar, cover the solar panel
with the slide case.
2nd Functions
2nd functions are printed above the keys.
"
selects
the 2nd function of the next key pressed. For example,
2
" t
calculates the cube of 2.

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
06/17/99 4:31 PM Printed: 06/17/99 4:32 PM Page 3 of 21
Results
The calculator can display up to 10 digits plus a minus
sign (
-
9,999,999,999 through 9,999,999,999) and a
2-digit exponent. Results with more than 10 digits
display in scientific notation.
Basic Arithmetic
D > 8 2
60
D
5
8
12
J
120.
J
Completes all pending operations.
With constant (
K
), repeats the
operation and value.
O
Changes sign of value just entered.
1
D
8
O D
12
J
5.
6 7
Parenthetical expression (up to 15
open).
J
closes all open
parentheses.
.
Pi is calculated with 12 digits
(3.14159265359), displayed with 10
digits (3.141592654).
2
8 . J
6.283185307

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
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Percents
Percentage (
5% of 250 )
250
8
5
" u
0.05
J
12.5
Ratio (
Ratio of 250 to 5 )
250
2
5
" u
0.05
J
5000.
Add-On (
5% add-on of 250 )
250
D
5
" u
12.5
J
262.5
Discount (
5% discount of 250 )
250
>
5
" u
12.5
J
237.5

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
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Fractions
b
F
c Enters a proper or improper fraction,
b
à
c (b
{
6 digits, c
{
3 digits). When
possible, improper fractions are
displayed as mixed numbers.
3
F
4 3

4
8
3
J
2

1

4
Single-variable functions display
decimal results.
1
F
2
0
0.25
a
F
b
F
c Enters the mixed fraction a b
à
c.
(a, b, c
{
3 digits each, with the total
digits
{
8).
6
F
4
F
6 6

4

6
J
6

2

3
" s
Toggles display between a mixed
number and an improper fraction.
30
F
4 30

4
" s
7

1

2
" s
15

2
" s
7

1

2
" y
Toggles display between fraction and
decimal.
55
F
24 55

24
" y
2.291666667
" y
2

7

24
If a result would overflow or if fixed decimal is 0, no
fraction to decimal conversion occurs. It is not an error.
Denominator must be a whole number
{
999.

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
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Powers and Roots
/
8
/ D
4
/ J
0.375
0
6
0 D
2
J
38.
1
256
1 D
4
1 J
18.
" t
2
" t D
2
J
10.
" z
8
" z D
4
J
6.
,
5
,
3
J
125.
" Y
8
" Y
3
J
2.
Logarithmic Functions
$
15.32
$
1.185258765
D
12.45
$ J
2.280428117
" R
2
" R >
10
0 J
0.
%
15.32
%
2.729159164
D
12.45
% J
5.250879787
" S
.693
" S
1.999705661
D
1
J
2.999705661
(
e
=2.71828182846)

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
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Angle Units
#
Cycles angle-unit setting between
degrees, radians, and grads
without affecting displayed number.
" Q
Cycles (converts) angle-unit setting
between degrees, radians, and
grads for display, entry, and
calculation.
45
DEG
45
" Q
RAD
0.785398163
" Q
GRAD
50.
" Q
DEG
45.
DMS
Enter DMS (Degrees/Minutes/Seconds) values as
D.MMSSs, using 0s as necessary:
Ddegrees (0–7 digits)
.decimal-point separator
MM minutes (must be 2 digits)
SS seconds (must be 2 digits)
sfractional part of a second
For example, enter 48
¡
5'3.5" as 48.05035.
Note: Before using a DMS value in a calculation, you
must convert it to decimal with
" q
.
" q
Interprets display as DMS and
converts it to decimal.
30.09090
" q
30.1525
" w
Temporarily displays current value as
DMS.
30.1525
" w
30
¡
09'09"0

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
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Rectangular to Polar
" k
converts rectangular coordinates (
x
,
y
) to
polar coordinates (
r
,
q
).
Convert rectangular coordinates ( 10,8 ) to polar.
#
(if necessary) DEG
10
" [
8
DEG
8
" k
(display
r
)DEG r
12.80624847
" [
(display
q
)DEG
38.65980825
Polar to Rectangular
" e
converts polar coordinates (
r
,
q
) to
rectangular coordinates (
x
,
y
).
Convert polar coordinates ( 5,30 ) to rectangular.
#
(if necessary) DEG
5
" [
30
DEG
30
" e
(display
x
)DEG x
4.330127019
" [
(display
y
)DEG
2.5

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TI30XAUS.DOC MURFE pruning Pat Hatcher Revised:
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Trigonometric Functions
Before using the trigonometric functions (
)
,
*
,
+
,
" V
,
" W
, or
" X
), select
DEG
,
RAD
, or
GRAD
with
#
. Note: Before using a DMS
value in a calculation, you must convert it to decimal
with
" q
.
#
(if necessary) DEG
90
)
DEG
1.
>
30
*
DEG
0.866025404
J
DEG
0.133974596
1
" V
DEG
90.
>
.5
J
DEG
89.5
Hyperbolic Functions
To access hyperbolic functions, press
(
and then
the function (
( )
,
( *
,
( +
,
(
"
V
,
( " W
,
( " X
).
Note:
DEG
,
RAD
, or
GRAD
does not affect hyperbolic
calculations.
5
( )
74.20321058
D
2
J
76.20321058
5
( " V
2.312438341
D
2
J
4.312438341