Texas Instruments TI-30X Teachers Guide - Page 107

Function - 30xs on screen calculator

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Quick Reference to Keys (Continued) A Key N % O % i % { ? % [ v J I % ^ % C < % w Function Lets you enter mixed numbers and fractions. Converts a simple fraction to a mixed number or a mixed number to a simple fraction. Recalls the most recently calculated result, displaying it as Ans. Clears characters and error messages on the entry line. Once the display is clear, it moves the cursor to the last entry in history. Clears all memory variables. Calculates the cosine. Calculates the inverse cosine. Lets you enter the statistical data points (x for 1-VAR stats; x and y for 2-VAR stats). Deletes the character at the cursor. If you hold J down, it deletes all characters to the right. Then each time you press J, it deletes 1 character to the left of the cursor. Displays the following menu that lets you change the Angle mode to degrees (º), radians (r), or gradients (g), and then back to degrees without affecting the value in the display. DEG Sets degree mode. RAD Sets radian mode. GRD Sets gradient mode. When you turn on the TI30X ÙS, it is always in the DEG mode. Calculates the natural antilogarithm (e raised to the power of the value). Lets you enter and calculate the exponent. Completes the operation or executes the command. Displays the following menu that lets you clear data values and exit STAT mode. EXIT ST: Y N Press < when Y (yes) is underlined to clear data values and exit STAT mode. Press < when N (no) is underlined to return to the previous screen without exiting STAT mode. © 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X ÙS: A Guide For Teachers A-2

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© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: A Guide For Teachers
A-2
Quick Reference to Keys
(Continued)
A
Key
Function
N
Lets you enter mixed numbers and fractions.
%
O
Converts a simple fraction to a mixed number or a mixed number to a
simple fraction.
%
i
Recalls the most recently calculated result, displaying it as
Ans
.
-
Clears characters and error messages on the entry line. Once the display is
clear, it moves the cursor to the last entry in history.
%
{
Clears all memory variables.
?
Calculates the cosine.
%
[
Calculates the inverse cosine.
v
Lets you enter the statistical data points (
x
for
1-VAR
stats;
x
and
y
for
2-VAR
stats).
J
Deletes the character at the cursor. If you hold
J
down, it deletes all
characters to the right. Then each time you press
J
, it deletes 1
character to the left of the cursor.
I
Displays the following menu that lets you change the
Angle
mode to
degrees (
º
), radians (
r
), or gradients (
g
), and then back to degrees without
affecting the value in the display.
DEG
Sets degree mode.
RAD
Sets radian mode.
GRD
Sets gradient mode.
When you turn on the TI30X
Ù
S, it is always in the
DEG
mode.
%
^
Calculates the natural antilogarithm (e raised to the power of the value).
%
C
Lets you enter and calculate the exponent.
<
Completes the operation or executes the command.
%
w
Displays the following menu that lets you clear data values and exit
STAT
mode.
EXIT ST:
Y
N
Press
<
when
Y
(yes) is underlined to clear data values and exit
STAT
mode.
Press
<
when
N
(no) is underlined to return to the previous screen
without exiting
STAT
mode.