HP 9g User Manual

E-17
Press [ MATH ] repeatedly to is display a list of mathematical functions and
their associated arguments. See Example 31. The functions available are:
! Calculate the factorial of a specified positive integer n , where
n
≦
69.
RAND Generate a random number between 0 and 1.
RANDI Generate a random integer between two specified integers, A
and B, where A
≦
random value
≦
B.
RND Round off the result.
MAX Determine the maximum of given numbers. (Up to 10 numbers
can be specified.)
MIN Determine the minimum of given numbers. (Up to 10 numbers
can be specified.)
SUM Determine the sum of given numbers. (Up to 10 numbers can
be specified.)
AVG Determine the average of given numbers. (Up to 10 numbers
can be specified.)
Frac Determine the fractional part of a given number.
INT Determine the integer part of a given number.
SGN Indicate the sign of a given number: if the number is
negative, –1 is displayed; if zero, 0 is displayed; if positive, 1
is displayed.
ABS Display the absolute value of a given number.
nPr Calculate the number of possible permutations of n items taken
r at a time.
nCr Calculate the number of possible combinations of n items
taken r at a time.
Defm Memory expansion.
Other Functions ( x
-1
, , , ,x
2
, x
3
,
^
)
The calculator also provides reciprocal ( [ x
-1
] ), square root ( [ ] ), cube
root ( [ ] ), square ( [ x
2
] ), universal root ( [ ] ), cubic ( [ x
3
] ) and
exponentiation ( [
^
] ) functions. See Example 32.
Unit Conversion
You can convert numbers from metric to imperial units and vice versa. See
Example 33. The procedure is:

HP 9g Specifications

General

Digits	- digits
Display type	LCD
Display tilting	No
Display number of lines	- lines
Type	Graphing
Cover	-
Form factor	Desktop
Control type	Buttons
Product color	Black
Battery type	GP-76A
Power source	Battery

Weight and Dimensions

Depth	155 mm
Width	81 mm
Height	13.7 mm

Summary

Chapter 1: General Operations

Power Supply

Details on turning the calculator on/off, battery replacement, and auto power-off.

Chapter 2: Before Starting a Calculation

Changing Modes

How to select calculation modes like MAIN, STAT, BaseN, PROG.

Using the 2nd and ALPHA keys

How to access secondary functions and alphabetic characters.

Memory

Details on running memory, standard variables, equations, and array variables.

Order of Operations

Explains calculation precedence rules (parentheses, functions, exponentiation, etc.).

Error Conditions

Message Meaning

Lists common error messages (DOMAIN Er, DIVIDE BY O, SYNTAX Er) and their meanings.

Chapter 3: Basic Calculations

Arithmetic Calculation

How to perform mixed operations, handle negative values, and use exponential form.

Chapter 4: Common Math Calculations

Logarithm and Antilogarithm

How to calculate common and natural logarithms and antilogarithms.

Fraction Calculation

How to enter, display, and convert fractions and mixed numbers.

Trigonometric and Inverse Trigonometric functions

Explains how to use sin, cos, tan, and their inverse functions.

Mathematical Functions

Overview of functions like factorial, random, round, MAX, MIN, SUM, AVG.

Chapter 5: Graphs

Built-in Function Graphs

How to graph predefined mathematical functions.

User-generated Graphs

How to graph custom functions and set display ranges.

Chapter 6: Statistical Calculations

Single-Variable and Two-Variable Statistics

Steps to input and calculate statistics for one or two datasets.

Regression Calculation

Chapter 8: Programming

Before Using the Program Area

Explains program capacity, types, and areas.

Program Control Instructions

Overview of commands like IF, THEN, GOTO, FOR, etc.

Creating a New Program

Step-by-step guide to creating and entering program commands.

Executing a Program

How to run, re-execute, and abort programs.

Debugging a Program

Program Examples