¦
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
# $
TI
½
40 Collège
×
After an expression is evaluated, use
through previous entries, which are stored in the
#
and
$
to scroll
Scientific Calculator
TI
N
40 Collège
Ö
memory. You cannot retrieve previous
Texas Instruments
7800 Banner Dr.
Dallas, TX 75251 U.S.A.
entries while in STAT mode.
Last Answer
% i
The most recently calculated result is stored to the variable
Texas Instruments Holland B.V.
Rutherfordweg 102
Ans. Ans is retained in memory, even after the
TI
¦
N
40 Collège
Ö
is turned off. To recall the value of Ans:
3542 CG Utrecht - The Netherlands
Press % i (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.
¦
T,
U,
F
¾
Order of Operations
1999 Texas Instruments Incorporated
The TI
N
40 Collège
Ö
uses EOS
é
(Equation Operating
System) to evaluate expressions.
General Information
1st Expressions inside parentheses.
Examples: See the last page of these instructions for
keystroke examples that demonstrate many of the
2nd Functions which need a ) and precede the argument,
such as the sin, log, and all R
ÍP menu items.
TI
settings.
turns on the TI
clears the display. APD™ (Automatic Power Down™) turns
off the TI 40 Collège automatically if no key is pressed
for about 5 minutes. Press after APD. The display,
N
40 Collège
Ö
functions. Examples assume all default
3rd
4th
Fractions.
&
N
40 Collège
Ö
.
% ' turns it off and
Functions that are entered after the argument, such
as x2 and angle unit modifiers (Ä Å Æ r g).
N
Ö
x
Ñ).
5th
6th
7th
8th
9th
Exponentiation (^) and roots (
Negation ( ).
&
M
pending operations, settings, and memory are retained.
Permutations (nPr) and combinations (nCr).
Multiplication, implied multiplication, division.
Addition and subtraction.
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.
10th Conversions (Ab
11th completes all operations and closes all open
parentheses.
Ì
c
Íd
Ì
e,
4
F,
4
D,
4
%,
4DMS).
Press % ! or % " 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.
Clearing and Correcting
-
Clears an error message.
Clears characters on the entry line.
Moves the cursor to last entry in history
once display is clear.
Indicator
2nd
Definition
2nd function.
Fixed-decimal setting.
Statistical mode.
FIX
J
Deletes the character at the cursor.
STAT
RAD
Deletes all characters to the right when
Angle mode set to radians.
you hold down
J; then, deletes 1
character to the left of the cursor each time
you press
Displays quotient (Q) and remainder (R) for
ÄÄQÄÄ
ÄÄRÄÄ
J
.
integer divide result.
% f
Inserts a character at the cursor.
Clears all memory variables.
The fraction result can be further simplified.
An entry is stored in memory before and/or
N/D¹n/d
% {
º »
% t
CLRDATA
Clears all data points without exiting STAT
mode.
after the active screen. Press
scroll.
#
and
$
to
% w Clears all data points and exits STAT mode.
An entry or menu displays beyond 11 digits.
Press or to scroll.
¹ ¸
Y
!
"
%
or
Y
N
Resets the TI 40 Collège
Ö. Returns unit
2nd Functions:
%
displays the 2nd indicator, and then
to default settings; clears memory
variables, pending operations, all entries in
history, and statistical data; clears
constant mode and Ans.
selects the 2nd function (printed above keys) of the next key
pressed. For example, % b 25 E < calculates the
square root of 25 and returns the result, 5.
&
&
-
Menus: Certain TI
N
40 Collège
Ö
d
keys display menus:
z
,
% h
,
L
,
,
% ~
,
Math Operations
d
% A
% w
and %
Press or
item. To return to the previous screen without selecting the
item, press . To select a menu item:
Press while the item is underlined, or
,
% B
,
% t
% I
,
u
,
,
H
.
,
,
=
,
% k
,
% ‚,
d
displays a menu with various math functions. Some
functions require you to enter 2 values, real numbers or
expressions which equal return a real number. % `
separates 2 values.
!
"
to move the cursor and underline a menu
-
abs(#)
round(#,digits) Rounds
iPart(#) Returns only the integer part (iPart) or
Displays absolute value of
#.
¦
<
#
to specified number of digits.
-1-
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¦
¦
In 1-VAR stat mode, enter the frequency of occurrence
(FRQ) of the data point. FRQ default=1. If FRQ=0, the data
point is ignored.
¦
¦
¦
¦
¦
¦
¦
For yx: y and x = 0; y < 0 and x not an integer.
For x: x < 0.
For LOG or LN: x
‡
0.
In 2-VAR stat mode, enter the value for Y1 and press
For TAN: x = 90
¡
, -90
¡
, 270
¡
, -270
¡
, 450
¡
, etc.
<
.
For SIN- or COS-1: |x| > 1.
1
5. Repeat steps 3 and 4 until all data points are entered.
You must press or to save the last data point or
FRQ value entered. If you add or delete data points, the
TI 40 Collège automatically reorders the list.
6. When all points and frequencies are entered:
For nCr or nPr: n or r are not integers
‚
0.
<
$
For x!: is not an integer between 0 and 69.
x
N
Ö
EQU LENGTH ERROR — An entry exceeds the digit limits (88 for
Entry Line and 47 for Stat or Constant Entry lines); for
example, combining an entry with a constant that exceeds
the limit.
¦
Press
table for definitions) and their current values, or
Press to return to the blank STAT screen. You
can do calculations with data variables ( , etc.).
Select a variable from the menu and then press
to evaluate the calculation.
7. When finished:
u
to display the menu of variables (see
FRACMODE — Pressing
}
when Fracmode
= .
Auto
¦
-
Ï
,
Ð
FRQ DOMAIN
—
FRQ value (in 1-VAR stats) < 0 or >99, or not an
u
integer.
<
OP — Pressing
or while in STAT mode.
m
or
o
when constants are not defined
¦
Press % t and select CLRDATA to clear all data
points without exiting STAT mode, or
Press % w < to clear all data points,
variable and FRQ values, and to exit STAT mode (STAT
indicator turns off).
OVERFLOW — |
hyperbolic, or R
q
|
‚
1
¯
10, where
q
is an angle in a trig,
4
Pr( function.
¦
STAT
—
¦
¦
Pressing
u with no defined data points.
When not in STAT mode, pressing
v
,
u, or
Variables
n
Definition
Number of
Mean of all
% w
.
X
or X,Y data points.
or values.
SYNTAX — The command contains a syntax error: entering
more than 23 pending operations, 8 pending values, or
having misplaced functions, arguments, parentheses, or
commas.
Ï
or
Sx or Sy
x or
Ð
X
Y
Sample standard deviation of
Population standard deviation of
Sum of all or values.
Sum of all X2 or Y2 values.
Sum of for all XY pairs.
X
or
Y.
Î
Î
y
X
or
Y.
Ò
Ò
Ò
a
x or
x2 or
xy
Ò
y
X
Y
Battery Replacement
1. Using a small Phillips screwdriver, remove screws from back
case.
2. Remove protective cover. Starting from the bottom, carefully
separate front from back. Caution: Be careful not to damage
any internal parts.
3. Using a small Phillips screwdriver (if necessary), remove old
battery; replace with new one.
Ò
y2
X
Y
…
Linear regression slope.
Linear regression Y-intercept.
Correlation coefficient.
b
r
X
¢
(2-VAR)
(2-VAR)
Uses a and b to calculate predicted X value
when you input a Y value.
Caution: Avoid contact with other TI
N
40 Collège
Ö
Y
¢
Uses a and b to calculate predicted Y value
when you input an X value.
components while changing the battery.
4. If necessary, press & and - at the same time to reset
the TI 40 Collège Ö (clears memory and all settings).
N
Probability
H
Caution: Dispose of old batteries properly. Do not incinerate
batteries or leave where a child can find them.
Calculates the number of possible
permutations of n items taken r at a time, given
n and r. The order of objects is important, as in
a race.
nPr
In Case of Difficulty
Review instructions to be certain calculations were
performed properly.
Calculates the number of possible
combinations of n items taken r at a time,
given n and r. The order of objects is not
important, as in a hand of cards.
nCr
Press
&
and
-
at the same time. This clears all
memory and settings.
A factorial is the product of the positive integers
Check the battery to ensure that it is fresh and properly
installed.
!
from 1 to
number
n.
n
must be a positive whole
69.
Change the battery when:
¦ & does not turn the unit on, or
Generates a random real number between 0
and 1. To control a sequence of random
RAND
¦
¦
The screen goes blank, or
You get unexpected results.
numbers, store an integer (seed value)
‚
0 to
rand. The seed value changes randomly every
time a random number is generated.
To continue using the TI
the battery:
N40 Collège
Ö
until you can change
Generates a random integer between 2
RAND
[
1. Expose the solar panel to brighter light.
integers, A and B, where A
{
RAND[ { B.
Separate the 2 integers with a comma.
2. Press and at the same time to reset the
&
-
calculator. This clears all settings and memory.
Errors
Note: Operates in well-lit areas using solar cell. Operates in
other light settings using battery.
ARGUMENT — A function does not have the correct number of
arguments.
DIVIDE BY 0
—
¦
¦
You attempted to divide by 0.
In statistics, n=1.
DOMAIN — You specified an argument to a function outside
the valid range. For example:
x
¦
For
‡
: x = 0 or y < 0 and
x
not an odd integer.
-3-
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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.
-4-
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abs, iPart,
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abs round
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8
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round(
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min max
¹
min, max,
lcm, gcd,
remainder
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log(1)
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0.25
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. 5 E <
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sin sin-1
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-7-
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