Texas Instruments TI 30Xa Solar User Manual

TI-30Xa/30Xa Solar, English  
TI-30Xa  
and  
TI-30Xa SOLAR  
Scientific Calculators  
Basic Operations  
Results  
Basic Arithmetic  
Percents  
2
3
3
4
Fractions  
5
6
6
7
Powers and Roots  
Logarithmic Functions  
Angle Units  
DMS  
7
8
8
9
Rectangular to Polar  
Polar to Rectangular  
Trigonometric Functions  
Hyperbolic Functions  
One-Variable Statistics  
Probability  
Clearing and Correcting  
Constants (Repeated Operations)  
Memory  
Order of Operations  
Notation  
Display Indicators  
Error Conditions  
In Case of Difficulty  
9
10  
12  
13  
13  
14  
15  
16  
17  
18  
19  
20  
21  
Battery Replacement (TI.30Xa)  
TI Product, Service, and Warranty Information  
1997 Texas Instruments Incorporated  
1
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.  
2
 
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  
J
60  
D
5
8
12  
J
120.  
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  
Parenthetical expression (up to 15  
open). closes all open  
J
5.  
6 7  
J
parentheses.  
.
Pi is calculated with 12 digits  
(3.14159265359), displayed with 10  
digits (3.141592654).  
2
8 . J  
6.283185307  
3
 
Percents  
Percentage (5% of 250)  
250  
J
8
5
" u  
0.05  
12.5  
Ratio (Ratio of 250 to 5)  
250  
J
2
5
" u  
0.05  
5000.  
Add-On (5% add-on of 250)  
250  
J
D
5
" u  
12.5  
262.5  
Discount (5% discount of 250)  
250  
J
>
5
" u  
12.5  
237.5  
4
 
Fractions  
b
F
c
Enters a proper or improper fraction,  
c (b 6 digits, c 3 digits). When  
b
à
{
{
possible, improper fractions are  
displayed as mixed numbers.  
3
8
F
4
3
1
4
4
3
J
2  
Single-variable functions display  
decimal results.  
1
F
2
0
0.25  
a
F
b
F
c
Enters the mixed fraction a b  
(a, b, c 3 digits each, with the total  
digits 8).  
àc.  
{
{
6 F  
J
4
F
6
6
6


4
2
6
3
" s  
Toggles display between a mixed  
number and an improper fraction.  
30  
F
4
30  
4
2
2
" s  
" s  
" s  
7

1
15  
7

1
2
" y  
Toggles display between fraction and  
decimal.  
55  
F
24  
55  
2.291666667  
24  
24  
" y  
" y  
2
7€  
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.  
{
5
 
Powers and Roots  
/
8
6
/ D  
0 D  
4
/ J  
J
0.375  
38.  
18.  
10.  
6.  
0
2
1
256 1 D 1 J  
4
" t  
" z  
,
2
8
5
8
" t D  
" z D  
2
J
J
4
,
3
J
125.  
2.  
" Y  
" Y  
3
J
Logarithmic Functions  
$
15.32  
12.45 $ J  
2 " R > 10 0 J  
$
1.185258765  
2.280428117  
0.  
D
" R  
%
15.32  
12.45 % J  
.693 " S  
%
2.729159164  
5.250879787  
1.999705661  
2.999705661  
D
" S  
D
1
J
(e=2.71828182846)  
6
 
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  
RAD  
GRAD  
DEG  
45  
0.785398163  
50.  
" Q  
" Q  
" Q  
45.  
DMS  
Enter DMS (Degrees/Minutes/Seconds) values as  
D.MMSSs, using 0s as necessary:  
D
.
MM  
SS  
s
degrees (0–7 digits)  
decimal-point separator  
minutes (must be 2 digits)  
seconds (must be 2 digits)  
fractional 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  
7
 
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  
38.65980825  
" [ (display  
q
)
DEG  
Polar to Rectangular  
" e converts polar coordinates (  
r
,q) to  
rectangular coordinates ( ).  
x,y  
Convert polar coordinates (5,30) to rectangular.  
#
(if necessary)  
DEG  
DEG  
DEG x  
DEG  
5
" [ 30  
" e (display  
30  
4.330127019  
2.5  
x)  
" [ (display  
y)  
8
 
Trigonometric Functions  
Before using the trigonometric functions (  
)
,
*,  
+
,
" V  
,
" W, or " X), select  
. Note: Before using a DMS  
value in a calculation, you must convert it to decimal  
with " q  
DEG, RAD, or GRAD with  
#
.
#
(if necessary)  
DEG  
DEG  
DEG  
DEG  
DEG  
DEG  
90  
>
J
)
1.  
0.866025404  
0.133974596  
90.  
30  
*
1
>
" V  
.5  
J
89.5  
Hyperbolic Functions  
To access hyperbolic functions, press  
the function (( )  
(
( +  
and then  
,
( *  
,
,
(
" V  
,
( " W ( " X).  
,
Note: DEG, RAD, or GRAD does not affect hyperbolic  
calculations.  
5
D
( )  
74.20321058  
76.20321058  
2.312438341  
4.312438341  
2
J
5 ( " V  
D
2
J
9
 
One-Variable Statistics  
" h  
4
Clears all statistical data.  
Enters a data point.  
" a  
" \  
Removes a data point.  
Adds or removes multiple occurrences  
of a data point.  
Enter data point, press " \  
enter frequency (1–99), press  
,
4
to  
add or " a to remove data points.  
" c  
" d  
" ]  
Sum.  
Sum of squares.  
Mean.  
" _  
Population standard deviation  
(n weighting).  
" ^  
" b  
Sample standard deviation (n-1  
weighting).  
Number of data points.  
10  
 
Find the sum, mean, population standard deviation, and  
sample standard deviation for the data set: 45, 55, 55,  
55, 60, 80. The last data point is erroneously entered as  
8, removed with " a, and then correctly entered  
as 80.  
" h (if STAT is displayed)  
45  
4
n=  
n=  
n=  
n=  
n=  
n=  
1
4
5
6
5
55 " \  
60  
3
4
4
8
8
4
" a  
80  
4
6
" c (sum)  
350.  
" ] (mean)  
" _ (deviation,  
" ^ (deviation, n-1 weighting)  
58.33333333  
10.67187373  
11.69045194  
n
weighting)  
11  
Probability  
A combination is an arrangement of objects in which  
order is not important, as in a hand of cards. " i  
calculates the number of possible combinations of  
items taken at a time.  
n
r
Calculate the number of 5-card poker hands that can be  
dealt from a deck of 52 cards.  
52 " i  
5
J
2598960.  
A permutation is an arrangement of objects in which  
the order is important, as in a race. " j calculates  
the number of possible permutations of  
at a time.  
n
items taken  
r
Calculate the number of possible permutations for the  
1st-, 2nd-, and 3rd-place finishers (no ties) in an 8-  
horse race.  
8
" j  
3
J
336.  
A factorial is the product of the positive integers from 1  
to . ( must be a positive whole number 69).  
n
n

Using the digits 1, 3, 7, and 9 only one time each, how  
many 4-digit numbers can you form?  
4
" v  
24.  
12  
 
Clearing and Correcting  
|
&
(battery)  
(solar)  
Clears value (before operation key)  
and K, but not M1, M2, M3, or STAT.  
| |  
(battery)  
Clears display, errors, all pending  
operations and K, but not M1, M2, M3, or  
& & (solar) STAT.  
} |  
(battery)  
Clears display, errors, all pending  
operations, K, and STAT, but not M1, M2,  
and M3. Sets DEG angle units, floating-  
decimal format.  
!
L
(solar)  
Clears display, errors, all pending  
operations,  
K
,
STAT, M1, M2, and M3.  
Sets DEG angle units, floating-decimal  
format.  
Deletes right-most character in  
display.  
0
: n  
Clears memory  
n.  
" n  
" { N  
" h  
Clears SCI or ENG notation.  
Clears FIX notation.  
Clears all statistical data.  
Constants (Repeated Operations)  
A constant contains an operation and a value. To  
establish a constant, press " U after entering the  
operation and value.  
Another operation,  
(battery) clears  
J
!
K.  
repeats the calculation.  
(solar),  
& (solar), or  
|
8
J
D
7
" U  
K
K
K
K
7.  
15.  
12.  
5
J
6.6  
J
13.6  
13  
 
Memory  
The calculator has 3 memories. When a memory  
contains a number other than 0, M1, M2, or M3 displays.  
To clear a single memory, press 0  
:
1, 0  
:
2, or  
0 :  
!
3. To clear all 3 memories (solar only), press  
.
: n  
Stores displayed value in memory  
, replacing current value.  
n
23  
D
:
2
1
M1  
M1  
23.  
25.  
J
@ n  
Recalls value in memory  
n.  
(continued)  
@
1
J
M1  
M1  
23.  
26.  
D
3
" m n  
" g n  
Adds displayed value to memory  
(continued)  
n.  
4
@
" m  
1
M1  
M1  
4.  
1
27.  
Exchanges displayed and memory  
values.  
(continued)  
3
8
5
J
M1  
M1  
M1  
15.  
27.  
15.  
" g  
" g  
1
1
14  
 
Order of Operations  
1st  
Expressions inside parentheses.  
2nd  
Single-variable functions that perform the  
calculation and display the result immediately  
(square, square root, cube, cube root,  
trigonometric, factorial, logarithmic, percent,  
reciprocals, angle conversions).  
3rd  
4th  
5th  
6th  
7th  
Combinations and permutations.  
Exponentiation and roots.  
Multiplication and division.  
Addition and subtraction.  
J
completes all operations.  
The TI-30Xa uses AOS  
is displayed).  
é
(Algebraic Operating System). It stores up to 4 pending operations (2 when STAT  
15  
 
Notation  
" o  
Selects scientific notation.  
12345  
J
12345.  
" o  
SCI  
1.2345 04  
" p  
Selects engineering notation (exponent  
is a multiple of 3).  
(continued)  
" p  
ENG  
12.345 03  
" n  
Restores standard notation (floating-  
decimal) format.  
" { n Sets decimal places to  
n
(0–9),  
retaining notation format.  
(continued)  
" {  
" {  
2
4
FIX  
FIX  
12.35 03  
12.3450 03  
" { N Removes fixed-decimal setting.  
Enters exponent.  
5
You can enter a value in floating-decimal, fixed-  
decimal, or scientific notation, regardless of display  
format. Display format affects only results.  
To enter a number in scientific notation:  
1. Enter up to 10 digits for base (mantissa). If  
negative, press  
O
after entering the mantissa.  
2. Press  
5
.
3. Enter 1 or 2 digit exponent. If negative, press  
either before or after entering exponent.  
O
1.2345 O 5 O 65  
.
1.2345  
.65  
16  
 
Display Indicators  
M1, M2, or M3 A value other than 0 in M1, M2, or M3.  
2nd  
Calculator will access 2nd function  
(printed above key) of next key pressed.  
HYP  
Calculator will access hyperbolic function  
of next key pressed.  
SCI or ENG  
FIX  
Scientific or engineering notation.  
Fixed-decimal setting.  
STAT  
Statistical register contains data.  
DEG, RAD, or Specifies angle-unit setting (degrees,  
GRAD  
radians, or grads). When you turn on the  
calculator, angle units are degrees.  
x
r
x
-coordinate of polar to rectangular  
conversion.  
-coordinate of rectangular to polar  
r
conversion.  
( )  
1 or more open parentheses.  
Error  
Error has occurred. Clear calculator and  
begin again.  
K
Constant is active.  
17  
 
Error Conditions  
¦
¦
Number, result, or memory sum  
| > 9.999999999 x 1099  
x, where  
|x  
.
More than 4 pending operations (2 when STAT is  
displayed) or more than 15 open parentheses per  
pending operation.  
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
¦
For x!:  
x
y
not an integer between 0 and 69.  
and = 0 or < 0 and not an integer.  
= 0 or < 0 and not an odd integer.  
For yx:  
x
y
x
x
For  
y:  
x
y
x
Dividing by 0.  
For x: < 0.  
For LOG or LN: x  0.  
x
For TAN:  
¡ ¡ ¡ ¡ ¡  
x=90 , -90 , 270 , -270 , 450 , etc.  
For SIN 1 or COS 1: |  
x| > 1.  
-
-
For TANH-1: |  
For R P: or  
For nCr or nPr:  
More than 9999 statistical data points.  
Statistical data point , where | 1E64.  
" a to remove the only data point.  
Calculating xn, or xn with no data points or  
x
|
1.  
has exponent > 63.  
or are not integers  
<
x
y
n
r
0.  
x
x|  
v
,
s
s
-1  
s
-1  
xn with one data point.  
¦
" h with no data points.  
18  
 
In Case of Difficulty  
Review instructions to be certain calculations were  
performed properly.  
TI-30Xa (battery)  
If the display is blank, check for improperly installed  
batteries. Press  
|
and try again.  
TI-30Xa Solar  
If the display is blank, expose the solar panel to  
adequate light. Press and try again.  
!
19  
 
Battery Replacement (TI.30Xa)  
1. Remove slide cover. Place calculator face down.  
2. Using a small Phillips screwdriver, remove screws  
from back case.  
3. Remove back case.  
4. Remove discharged batteries.  
Caution: Avoid contact with other calculator  
components while changing batteries.  
5. Install new batteries positive side up, as shown on  
diagram inside case.  
6. Replace back case, and then replace screws.  
7. Press } | |  
.
Caution: Dispose of old batteries properly. Do not  
incinerate batteries or leave where a child can find  
them.  
Your calculator cannot hold data in memory when  
batteries are removed or become discharged.  
20  
 
TI Product, Service, and Warranty  
Information  
TI Product and Services Information  
For more information about TI products and services,  
contact TI by e-mail or visit the TI calculator home page  
on the world-wide web.  
e-mail address:  
internet address:  
Service and Warranty Information  
For information about the length and terms of the  
warranty or about product service, refer to the warranty  
statement enclosed with this product or contact your  
local Texas Instruments retailer/distributor.  
21  
 

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