Texas Instruments MathPrint TI-30X Pro Manual

TI-30X Pro MathPrint™
Scientific Calculator Guidebook
This guidebook applies to software version 1.0. To view the latest version of the
documentation, go to education.ti.com/eguide.

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Important Information
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limited to any implied warranties of merchantability and fitness for a particular
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purchase price of this product. Moreover, Texas Instruments shall not be liable for any
claim of any kind whatsoever against the use of these materials by any other party.
MathPrint, APD, Automatic Power Down, and EOS are trademarks of Texas Instruments
Incorporated.
Copyright © 2018 Texas Instruments Incorporated

Contents
Getting Started 1
Switching the Calculator On and Off 1
Display Contrast 1
Home Screen 1
2nd Functions 2
Modes 2
Multi-Tap Keys 4
Menus 5
Examples 5
Scrolling Expressions and History 6
Answer Toggle 6
Last Answer 7
Order of Operations 7
Clearing and Correcting 9
Memory and Stored Variables 10
Math Functions 13
Fractions 13
Percentages 15
Scientific Notation [EE] 16
Powers, Roots and Inverses 17
Pi (symbol Pi) 17
Math 18
Number Functions 19
Angles 21
Rectangular to Polar 23
Trigonometry 24
Hyperbolics 26
Logarithm and Exponential Functions 26
Numerical Derivative 27
Numerical Integral 28
Statistics, Regressions and Distributions 30
Probability 40
Math Tools 43
Stored Operations 43
Data Editor and List Formulas 44
Function Table 48
Matrices 50
Vectors 53
Solvers 55
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iv
Number Bases 60
Expression Evaluation 62
Constants 63
Conversions 64
Complex Numbers 67
Reference Information 70
Errors and Messages 70
Battery Information 74
Troubleshooting 75
General Information 76
Online Help 76
Contact TI Support 76
Service and Warranty Information 76

Getting Started
This section contains information about basic calculator functions.
Switching the Calculator On and Off
&turns on the calculator. % ' turns it off. The display is cleared, but the history,
settings, and memory are retained.
The APD™ (Automatic Power Down™) feature turns off the calculator automatically if
no key is pressed for about 3 minutes. Press &after APD™. The display, pending
operations, settings, and memory are retained.
Display Contrast
The brightness and contrast of the display depend on room lighting, battery freshness
and viewing angle.
To adjust the contrast:
1. Press and release the %key.
2. Press ](to darken the screen) or [(to lighten the screen).
Note: This will adjust the contrast one level at a time. Repeat steps 1 and 2 as
needed.
Home Screen
On the Home screen, you can enter mathematical expressions and functions, along
with other instructions. The answers are displayed on the Home screen.
The TI-30X Pro MathPrint™ screen can display a maximum of four lines with a
maximum of 16 characters per line. For entries and expressions longer than the visible
screen area, you can scroll left and right (!and ") to view the entire entry or
expression.
In MathPrint™ mode, you can enter up to four levels of consecutive nested functions
and expressions, which include fractions, square roots, exponents with ^, Ü, ex, and
10x.
When you calculate an entry on the Home screen, depending upon space, the answer is
displayed either directly to the right of the entry or on the right side of the next line.
Special indicators and cursors may be displayed on the screen to provide additional
information concerning functions or results.
Indicator Definition
2ND 2nd function.
FIX Fixed-decimal setting. (See Mode section.)
SCI, ENG Scientific or engineering notation. (See Mode
section.)
Getting Started 1

2 Getting Started
Indicator Definition
DEG, RAD,
GRAD
Angle mode (degrees, radians, or gradians). (See
Mode section.)
L1, L2, L3 Displays above the lists in data editor.
H, B, O Indicates HEX, BIN, or OCT number-base mode. No
indicator displayed for default DEC mode.
The calculator is performing an operation. Use &
to break the calculation.
5 6 An entry is stored in memory before and/or after
the visible screen area. Press #and $to scroll.
´Indicates that the multi-tap key is active.
Normal cursor. Shows where the next item you
type will appear. Replaces any current character.
Entry-limit cursor. No additional characters can be
entered.
Insert cursor. A character is inserted in front of the
cursor location.
Placeholder box for empty MathPrint™ template.
Use the arrow keys to move into the box.
MathPrint™ cursor. Continue entering in the
current MathPrint™ template, or press "to exit
the template.
2nd Functions
%
Most keys can perform more than one function. The primary function is indicated on
the key and the secondary function is displayed above it. Press %to enable the
secondary function of a given key. Notice that 2ND appears as an indicator on the
screen. To cancel before pressing the next key, press %again. For example, % b
25 <calculates the square root of 25 and returns the result, 5.
Modes
q
Use qto choose modes. Press $ # ! " to choose a mode, and <to select it.
Press -or % s to return to the Home screen and perform your work using the
chosen mode settings.
Default settings are highlighted in these sample screens.

DEGREE RADIAN GRADIAN - Sets the angle mode to degrees, radians, or gradians.
NORMAL SCI ENG - Sets the numeric notation mode. Numeric notation modes
affect only the display of results, and not the accuracy of the values stored in the unit,
which remain maximal.
NORMAL displays results with digits to the left and right of the decimal, as in
123456.78.
SCI expresses numbers with one digit to the left of the decimal and the appropriate
power of 10, as in 1.2345678E5, which is the same as the value (1.2345678×105)
including the brackets for correct order of operation.
ENG displays results as a number from 1 to 999 times 10 to an integer power. The
integer power is always a multiple of 3.
Note: Eis a shortcut key to enter a number in scientific notation format. The
result displays in the numeric notation format selected in the mode menu.
FLOAT 0123456789- Sets the decimal notation mode.
Float (floating) decimal mode displays up to 10 digits, plus the sign and decimal.
0123456789(fixed decimal point) specifies the number of digits (0 to 9) to
display to the right of the decimal.
REAL a+bi r±q - Sets the format of complex number results.
REAL real results
a+bi rectangular results
r±q polar results
DEC HEX BIN OCT - Sets the number base used for calculations.
DEC decimal
HEX hexadecimal (To enter hex digits A through F, use % §,% ¨, and so on.)
BIN binary
OCT octal
MATHPRINT CLASSIC
MATHPRINT mode displays most inputs and outputs in textbook format.
CLASSIC mode displays inputs and outputs in a single line.
Examples of MathPrint™ and Classic Modes
MathPrint™ Mode Classic Mode
Sci Sci
Getting Started 3

4 Getting Started
MathPrint™ Mode Classic Mode
Float mode and answer toggle
key
Float mode and answer toggle
key.
Fix 2 and answer toggle key Fix 2
Un/d Un/d entry
Exponent example Exponent example
Square root example Square root example
Cube root example Cube root example
Multi-Tap Keys
A multi-tap key is one that cycles through multiple functions when you press it. Press
"to stop multi-tap.
For example, the Xkey contains the trigonometry functions sin and sin/as well as
the hyperbolic functions sinh and sinh/. Press the key repeatedly to display the function
that you want to enter.

Multi-tap keys include z,X,Y,Z,C,D,H, and g. Applicable
sections of this guidebook describe how to use the keys.
Menus
Menus give you access to a large number of calculator functions. Some menu keys,
such as % h, display a single menu. Others, such as d, display multiple
menus.
Press "and $to scroll and select a menu item, or press the corresponding number
next to the item. To return to the previous screen without selecting the item, press
-. To exit a menu and return to the Home screen, press % s.
% h (key with a single menu):
RECALL VAR
1:x = 0
2:y = 0
3:z = 0
4:t = 0
5:a = 0
6:b = 0
7:c = 0
8:d = 0
d(key with multiple menus):
MATHS NUM DMS R³´P
1:4n/d³´Un/d
2:lcm(
3:gcd(
4:4Pfactor
5:sum(
6:prod(
7:nDeriv(
8:fnInt(
1:abs(
2:round(
3:iPart(
4:fPart(
5:int(
6:min(
7:max(
8:mod(
1:¡
2:¢
3:£
4:r
5:g
6:4DMS
1:P 4Rx(
2:P 4Ry(
3:R 4Pr(
4:R 4Pq(
Examples
Some sections are followed by instructions for keystroke examples that demonstrate
the TI-30X Pro MathPrint™ functions.
Notes:
• Examples assume all default settings, as shown in the Modes section unless noted
in the example.
• Use -to clear the home screen as needed.
Getting Started 5

6 Getting Started
• Some screen elements may differ from those shown in this document.
• Since wizards retain their memory, some keystrokes may be different.
Scrolling Expressions and History
! " # $
Press !or "to move the cursor within an expression that you are entering or editing.
Press % ! or % " to move the cursor directly to the beginning or end of the
expression.
From an expression or edit, #moves the cursor to the history. Press <from an
input or output in history to paste that expression back to the cursor position on the
edit line.
Press % # from the denominator of a fraction in the expressions edit to move the
cursor to the history. Press <from an input or output in history to paste that
expression back to the cursor position on the edit line.
Example
7F U 4
(3)(1) <
% b # # <
<
r
Answer Toggle
r
Press the rkey to toggle the display result (when possible) between fraction and
decimal answers, exact square root and decimal, and exact pi and decimal.
Example
Answer
toggle
% b 8<
r