Handleiding Texas Instruments ti 34 ii explorer plus (pagina 1 van 4) (Engels)

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US 34II

1L1

A Page 1

××

Explorer Plus

Scientific Calculator



1999 Texas Instruments

General Information

Examples: See the last page of these instructions for

keystroke examples that demonstrate many of the TI

functions. Examples assume all default settings.

turns on the TI

turns it off and clears

the display. APD™ (Automatic Power Down™) turns off

the TI

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.

FIX

Fixed-decimal setting.

STAT

Statistical mode.

RAD

Angle mode set to radians.

ÄÄÄÄQÄÄÄÄ

ÄÄÄÄRÄÄÄÄ

Displays quotient (

) and remainder (

) for

integer divide result.

N/D

n/d

The fractional result can be further simplified.

An entry is stored in memory before and/or

after the active screen. Press

and

scroll.

An entry or menu displays beyond 11 digits.

Press

and

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

keys display menus:

‚

, and



Press

and

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

memory. You cannot retrieve previous entries while in

STAT

mode.

Last Answer

The most recently calculated result is stored to the variable

Ans. Ans is retained in memory, even after the TI

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

uses EOS

(Equation Operating System) to

evaluate expressions.

1st Expressions inside parentheses.

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

such as the sin, log, and all R

P menu items.

3rd Fractions.

4th Functions that are entered after the argument, such

as x

and angle unit modifiers (

5th Exponentiation (^) and roots (

6th Negation (

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

8th Multiplication, implied multiplication, division.

9th Addition and subtraction.

10th Conversions (A

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

. Returns unit to

default settings; clears memory

variables, pending operations, all

entries in history, and statistical data;

clears constant mode and

Ans

Math Operations

displays a menu with various math functions.

Some functions require you to enter 2 values, real numbers

or expressions that equal return a real number.

separates two values.

abs(

)

Displays absolute value of

round(

digits

)

Rounds

to specified number of

digits

iPart(

)

fPart(

)

Returns only the integer part (

iPart

) or

fractional part (

fPart

) of

min(

)

max(

)

Returns the minimum (

min

) or maximum

(

max

) of two values,

and

lcm(

)

gcd(

)

Finds the least common multiple (

lcm

)

or greatest common divisor (

gcd

) of two

values,

and

Calculates the cube of

(

)

Calculates the cube root of

remainder(

)

Returns the remainder resulting from

the division of 2 values,

Integer Divide

divides 2 positive integers and displays the

quotient,

, and the remainder,

. Only the quotient is

stored to Ans.

Fractions

}}

Fractional calculations can display fractional or decimal

results.

displays a menu of 4 display mode settings.

These determine how fraction results are displayed. You

select 2 items:

b/c

displays mixed number results.

d/e

(default) displays fraction results.

Manual

(default) displays unsimplified fractions.

Auto

displays fraction results simplified to lowest terms.

separates a whole number from the fraction in a

mixed number, and

separates a numerator from the

denominator. The denominator must be a positive integer.

To negate a fraction, press

before entering numerator.

}

simplifies a fraction using the lowest common

prime factor. If you want to choose the factor (instead of

letting the calculator choose it), press

}

, enter the

factor (an integer), and then press

displays

Fac

on the entry line and the divisor

used to simplify the last fraction result. You must be in

Manual

mode to display

Fac

. Press

again to

toggle back to the simplified fraction.

converts a fraction to a decimal, if possible.

converts a decimal to a fraction, if possible.

converts a decimal or fraction to a percent.

converts between a mixed number and a

simple fraction.

=3.141592653590 for calculations.

=3.141592654 for

display. In

RAD

mode,

is represented as

in results of

multiplication or fractional calculations. The TI

only

accepts

in the numerator of a fraction.

Angle Modes

displays a menu to change the Angle mode to

degrees or radians.

displays a menu to specify the Angle unit modifier—

degrees (

), minutes (

), seconds (

), radians (

), or

DMS

(convert an angle to DMS notation).

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

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.

Trig and Logarithms

displays a menu of all trigonometric functions

(sin, sin

-1

, cos, cos

-1

, tan, tan

-1

). Select the trigonometric

function from the menu and then enter the value. Set the

desired Angle mode before starting trigonometric

calculations.

displays a menu of all log functions

(

log

). Select the log function from the menu,

then enter the value, and complete it with

Rectangular

ÍÍ

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.

Texas Instruments ti 34 ii explorer plus Handleiding

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