Texas Instruments TI-30X IIB Manual

Texas Instruments Regnemaskine TI-30X IIB

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ENG 30X OMÖà à1L1/A Page 1

TI-30X

and

TI-30X

Scientific Calculators



1999 Texas Instruments Incorporated

General Information

Examples: See the last page of these instructions for

keystroke examples that demonstrate many of the

TI-30X

functions. Examples assume all default settings.

turns on the TI-30X

turns it off and clears

the display.

APD™ (Automatic Power Down™) turns off the TI-30X

automatically if no key is pressed for about 5 minutes.

Press

after APD. The display, pending operations,

settings, and memory are retained.

2-Line Display: The first line (Entry Line) displays an entry

of up to 88 digits (or 47 digits for Stat or Constant Entry

Line). Entries begin on the left; those with more than 11

digits scroll to the right. Press

and

to scroll the line.

Press

to move the cursor immediately to

the beginning or end of the entry.

The second line (

Result Line) displays a result of up to 10

digits, plus a decimal point, a negative sign, a “

x10”

indicator, and a 2-digit positive or negative exponent.

Results that exceed the digit limit are displayed in Scientific

Notation.

Indicator Definition

2nd

2nd function.

HYP

Hyperbolic function.

FIX

Fixed-decimal setting.

SCI, ENG

Scientific or Engineering Notation.

STAT

Statistical mode.

DEG, RAD,

GRAD

Angle mode (degrees, radians, or

gradients).

Constant mode is on.

x10

Precedes the exponent in Scientific or

Engineering Notation.

º »

An entry is stored in memory before and/or

after the active screen. Press

and

scroll.

¹ ¸

An entry or menu displays beyond 11 digits.

Press

to scroll.

2nd Functions

displays the 2nd indicator, and then

selects the 2nd function (printed above keys) of the next

key pressed. For example,

calculates the square root of 25 and returns the result, 5.

Menus: Certain TI-30X

keys display menus:

‚

, and



Press

to move the cursor and underline a menu

item. To return to the previous screen without selecting the

item, press

To select a menu item:

Press

while 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 displayed on the previous screen.

Previous Entries

After an expression is evaluated, use

and

to scroll

through previous entries, which are stored in the TI-30X

memory. You cannot retrieve previous entries while in

STAT

mode. You can edit a previous entry and press

evaluate the new expression.

Last Answer

The most recently calculated result is stored to the variable

Ans. Ans is retained in memory, even after the TI-30X

turned off. To recall the value of

Ans:

Press

(Ans displays on the screen), or

Press any operations key (

, etc.) as the first

part of an entry. Ans and the operator are both displayed.

Order of Operations

The TI-30X

uses EOS

(Equation Operating System) to

evaluate expressions.

1st Expressions inside parentheses.

2nd Functions that need a ) and precede the argument,

such as sin, log, and all

P menu items.

3rd Fractions.

4th Functions that are entered after the argument, such

as x

and angle unit modifiers (

5th Exponentiation (^) and roots (x

‡

6th Negation (

7th Permutations (nPr) and combinations (nCr).

8th Multiplication, implied multiplication, division.

9th Addition and subtraction.

10th Conversions (A

, F

DMS).

11th

completes all operations and closes all open

parentheses.

Clearing and Correcting

Clears an error message.

Clears characters on entry line.

Moves the cursor to last entry in history

once display is clear.

Deletes the character at the cursor.

Deletes all characters to the right when

you hold down

; then, deletes 1

character to the left of the cursor each

time you press

Inserts a character at the cursor.

{

Clears all memory variables.

CLRDATA

Clears all data points without exiting

STAT

mode.

Clears all data points and exits

STAT

mode.



Resets the TI-30X

. Returns unit to

default settings; clears memory

variables, pending operations, all entries

in history, and statistical data; clears

constant mode and Ans.

Fractions

Fractional calculations can display fractional or decimal

results. Results are automatically simplified.

¦ N

enters a fraction. Press

between whole number,

numerator, and denominator. The unit, numerator, and

denominator must be positive integers.

¦ %

converts between fractions and decimals.

¦ %

converts between mixed numbers and

simple fractions.

=3.141592653590 for calculations.

=3.141592654 for display.

Angle Modes

displays a menu to specify the Angle mode as

degrees, radians, or gradients.

displays a menu to specify the Angle unit modifier—

degrees (

), radians (

), gradients (

), or DMS (

). It

also lets you convert an angle to DMS Notation (

DMS

To set the Angle mode for any part of an entry:

Select the Angle mode. Entries are interpreted and results

displayed according to the Angle mode, or

Select a unit modifier (

) for any part of an entry.

Entries with unit modifiers are interpreted accordingly,

overriding the Angle mode.

To convert an entry:

Set the Angle mode to the unit you want to convert to.

Then use a unit modifier to designate the unit to convert

from. (Angles of trigonometric functions convert values

inside parentheses first.), or

Select

DMS, which converts an entry to DMS (

)

Notation.

Trigonometry

%Z[\

Enter trigonometric functions (sin, cos, tan, sin

-1

, cos

-1

, tan

-1

just as you would write them. Set the desired Angle mode

before starting trigonometric calculations.

Hyperbolics

displays the

HYP

indicator and accesses the

hyperbolic function of the next trigonometry key that you

press. Angle modes do not affect hyperbolic calculations.

Logarithms

%]^

yields the common logarithm of a number.

yields the logarithm of a number to the base e

(e=2.819291929).

raises 10 to the power you specify.

raises e to the power you specify.

Rectangular

Polar

displays a menu to convert rectangular

coordinates (x,y) to polar coordinates (r,

) or vice versa.

Set Angle mode, as necessary, before starting calculations.

Constants

turns Constant mode on and lets you define a

constant.

To store an operation to K and recall it:

1. Press

2. Enter any combination of numbers, operators, and/or

values, up to 44 characters, beginning with an operator.

3. Press

to save the operation. K displays in the

indicator line.

4. Each subsequent time you press

, the TI-30X

recalls the stored operation and applies it to the last

answer or the current entry.

Press

again to turn Constant mode off.

Memory

%h{

The TI-30X

has 5 memory variables—

, and

You can store a real number or an expression that results

in a real number to a memory variable.

¦ z

accesses the menu of variables.

¦ L

lets you store values to variables.

¦ %

recalls the values of variables.

¦ %

{

clears all variable values.

Notation

%‚

‚

displays the Decimal Notation

mode menu.

These modes affect

only

the display of results.

(default)

restores standard notation (floating-decimal) format.

0123456789

sets decimal places to

(0–9), retaining

numeric notation mode format.

displays the Numeric Notation mode menu.

These modes affect

only

the display of results.

FLO (default): Floating Notation, with digits to the left and

right of the decimal

SCI: Scientific Notation

ENG: Engineering Notation (exponent is a multiple of 3)

enters a value in Scientific Notation, regardless

of the numeric notation mode. Press

before entering a

negative exponent.

Produkt Specifikationer

Mærke:	Texas Instruments
Kategori:	Regnemaskine
Model:	TI-30X IIB
Type:	Videnskabelig
Produktfarve:	Grey,White
Kontroltype:	Knapper
Formfaktor:	Lomme
Husmateriale:	Plast
Strømkilde:	Batteri
Anden skærm:	Ingen
Baggrundsbelysning:	Ingen
Tekstlinjer:	2 Linier
Cifre:	11 cifre
Display vipning:	Ingen