Quick Start Guide

Quick Start Guide 47
1. Press b (and tap if necessary).
2. Select Arithmetic from the main menu, Complex from the sub-menu, and
Conjugate from the sub-sub-menu.
The appropriate syntax—CONJ()—appears on the entry line ready for you to
specify the complex number.
3. Enter 6+4*i between the parentheses and press E. The result is 6–4*i.
Menu format
By default, a function is presented on a math menu using its descriptive name, not its
command name. Thus the command name CONCAT is presented as Concatenate
and MOD is presented as Modulus. If you prefer the math menus to show the command names instead, clear the Menu
Display option on page 2 of the Home Settings screen (see “Home Settings” on page 12). This also affects the format of the
CAS menus.
CAS menu
This menu contains the more common math functions available to you in the CAS,
arranged by category. (Other CAS functions are available from the Catlg menu.) Press
b and, if necessary, tap . Select the appropriate category and then choose
the function you want. For example, suppose you want to find the greatest common
divisor of 4656, 764, and 8794:
1. Press b (and tap if necessary).
2. Select Integer from the main menu and GCD from the sub-menu.
The function—gcd()—appears on the entry line, ready for you to specify the
numbers whose greatest common divisor you are trying to find.
3.Enter 4656, 764, 8794 between the parentheses and press E. The result is 2.
App menu
This menu lists all the app functions available to you, arranged by app. Press b and,
if necessary, tap . Select the appropriate app and then choose the app function
you want. For example, suppose you want to find the slope of 2x
2
– 9x when x = 2.
Rather than using the Function app, a quicker way is to do the following:
1. Press b (and tap if necessary).
2. Select Function from the main menu and SLOPE from the sub-menu.
The function SLOPE() appears on the entry line, ready for you to specify the
function and the x-value (separated by a comma). Note that if the current app is not
the Function app, what appears on the entry line is Function.SLOPE().
3. Enter 2*X
2
–9*X,2 and press E. The result is –1.