Texas Instruments solar TI36X User Manual
Scientific Calculator
USER’S GUIDE
2000, 2003 Texas Instruments Incorporated education.ti.com
Ti36eng1.doc
Table of Contents 

Turning the Calculator On and Off............................  1 
Alternate Functions...................................................  1 
Display......................................................................  2 
Scrolling....................................................................  2 
Menus.......................................................................  3 
Fix.............................................................................  3 
Clearing, Correcting, and Resetting .........................  4 
Display Indicators .....................................................  5 
Order of Operations..................................................  6 
Basic Operations ......................................................  7 
Last Answer..............................................................  7 
Percent .....................................................................  9 
Fractions.................................................................  10 
Exponents, Roots, and Reciprocals .......................  11 
Notation ..................................................................  12 
Pi ............................................................................  13 
Memory...................................................................  14 
Stored Operations ..................................................  16 
Logarithms..............................................................  18 
Trigonometric Functions.........................................  20 
Angle Modes...........................................................  22 
Rectangular/Polar ................................................  24 
Hyperbolic Functions..............................................  25 
Metric Conversions.................................................  26 
Physical Constants.................................................  28 
Integrals..................................................................  30 
Probability...............................................................  32 
Statistics .................................................................  34 
Boolean Logic Operations ......................................  39 
40  
Complex Numbers..................................................  41 
Error Conditions......................................................  43 
In Case of Difficulty.................................................  45 
Battery Replacement ..............................................  45 
Service Information.................................................  46 
Ti36eng1.doc
Turning the Calculator On and Off
The
•To turn on the
•To turn off the
APDé (Automatic Power Downé) turns off the
Alternate Functions
Most keys can perform two functions. The first function is marked on the key, and the second function is marked above the key, as illustrated below.
2nd function  ì 
Primary function  P 
Press %to activate the second function of a key. To cancel the second function before making an entry, press %again. In this manual, second functions are shown in brackets ([ ]). For example, press Pto find the square of a number. Press %nto find the square root of a number.
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Ti36eng1.doc
Display
The
The second line (Result Line) displays a result of up to 10 digits, plus a decimal point, a negative sign, ax10 indicator, and a
Note: In the text, numbers containing decimal fractions are shown in decimal format consistent with the calculator display.
Scrolling
Scroll with ", !, #, and $.
•Press "and !to scroll horizontally through the current or previous entries, or to move the underscore within a menu list. Press %"or %!to move the cursor to the beginning or end of the entry.
•After an expression is evaluated, press #and $ to scroll through previous entries, which are stored in the
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Menus
Some key presses access menus: S, R, e,
The menu choices are displayed on the screen. Press "or !to scroll through the menu and underline an item. To select an underlined item:
•Press Vwhile the item is underlined. Or,
•For menu items followed by an argument value, enter the argument value while the item is underlined. The item and the argument value are transferred to the current entry. However, if the argument is another function, you need to press Vto select the first function before proceeding to the next.
To return to the previous screen without selecting the menu item, press 4.
Fix
%tdisplays a menu: F0123456789. To round displayed results, scroll with "or !to select the desired number of decimal places, or enter the numeral corresponding to the desired number of decimal places. The displayed value is padded with zeroes if needed. To restore standard notation (floating decimal), selectF (default) in the menu, or press %tI.
You can specify rounding places before you begin your calculations, before you complete an operation with V, or after the results are displayed.
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Ti36eng1.doc
Clearing, Correcting, and Resetting
Key Action
4Action depends on position of the cursor.
•If cursor is in the middle of an entry, clears character under the cursor and all characters to the right of the cursor.
•If cursor is at the end of an entry, clears the entire entry.
•If an Error message is displayed, clears the error message and moves the cursor to last entry in history.
•If a menu is displayed, exits menu.
'• If the cursor is on a character, deletes the character under the cursor.
 • If the cursor is at the end of an entry, 
 deletes the character to the left of the 
 cursor. 
%[  Lets you insert one or more characters at 
 the cursor. 
%s Resets the  
"V  default settings; clears memory variables, 
or  pending operations, all entries in history, 
T&4 statistical data, Ans, and stored  
(simul  operations. MEM CLEARED is displayed. 
taneously) 

You can overwrite entries. Move the cursor to the desired location and begin pressing keys. The new keypresses will overwrite the existing entry, character by character.
Before beginning a new set of examples or problems in this manual, reset the calculator to ensure that your displays will be the same as those shown.
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Ti36eng1.doc
Display Indicators
Special indicators may appear in the display to provide additional information about functions or results.
Indicator  Meaning 
2nd  2nd function is active. 
FIX  Calculator is rounding results to 
 specified number of places. 
SCI or ENG  Scientific or engineering notation is 
 active. 
STAT  Calculator is in Statistics mode. 
DEG, RAD,  Specifies 
or GRAD  radians, or grads). The default is the 
 degree setting. 
HEX or OCT  Calculator is in hexadecimal or octal 
 mode. 
x10  Precedes the exponent in scientific or 
 engineering notation. 
# $  An entry is stored in memory before 
 and/or after the active screen. Press # 
 and $to scroll. 
"! An entry or menu list extends beyond the capacity of the screen. Press "and !to scroll.
r or i  Complex number, real part, or 
 complex number, imaginary part. 
µ  Calculator is busy. 
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Ti36eng1.doc
Order of Operations
The
System) to evaluate expressions.
Order  Evaluation 
1st  Expressions inside parentheses. 
2nd  Functions which need a ) and precede the 
 argument, such as sin,log, and allR/P 
 menu items; Boolean Logic NOT and2’s 
 complement. 
3rd  Fractions. 
4th  Functions that are entered after the argument, 
 such as x2 and angle unit modifiers (éêër g); 
 metric conversions. 
5th  Exponentiation (^) and roots (x‡). 
6th  Negation (L). 
7th  Permutations (nPr) and combinations (nCr). 
8th  Multiplication, implied multiplication, division. 
9th  Addition and subtraction. 
10th  Boolean logic AND. 
11th  Boolean logic XOR andOR. 
12th  Conversions (4Ab/c/d/e,4F/D, 4DMS). 
13th  Vcompletes all operations and closes all 
 open parentheses. 
You can change the order of operations by enclosing expressions in parentheses.
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Ti36eng1.doc
Basic Operations
As you press keys, numerals, operators, and results appear on the display.
H, ?, @, A, B, Enters numerals 0 through 9.
C, D, E, F, G
:, ;, <, =  Adds, subtracts, multiplies, 
 divides. 
N, O  Opens, closes a parenthetical 
 expression. 
IInserts the decimal point.
JEnters a negative sign.
VCompletes all operations.
Last Answer
%urecalls the value of the most recently calculated result and enters it into the current entry as
Ans.
If you press an operator key immediately after completing an operation with V, the most recently calculated result is recalled and entered as Ans.
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Ti36eng1.doc
³
5 <9 :6 ;2 V
5 <N9 :6 O;2 V
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%t""""
V
5 <2 :%u%t6 V
%tI
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%s"V
Examples
49.
73.
Ansñ8.7 ß
8.390804598
F0123456789
Ansñ8.7 ß
8.391
5è2+Ans ß
18.390805
5è29
2+Ans ß 18.3908046
68.
MEM CLEARED
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Ti36eng1.doc