**B.
F2:Algebra**

This toolbar menu contains several commonly used algebraic functions. This menu is also available from the MATH menu. You may need to

clear the value of any variable that you are going to use unless you need for the variable to have a particular value during the execution of the process.Not all options are given in the entry format. Options that are used frequently will be included, but others are omitted from the table. For a complete format listing, you can check the TI-89 manual. They can be found in the manual.

Menu Item &

Entry FormatDescriptionExampleExample1:solve

solve(equation, var)This solves an expression for a specific

variable. It returns only real solutions.

More examples are at

II. Basic Calculations, E.2:factor

factor(expression1)This will factor an expression with

respect to all variables or only a

specified variable.3:expand

expand(expression1)This will expand an expression with

respect to all variables or only a

specified variable.4:zeros

zeros(expression, var)This will determine the value(s) of a

specified variable that will make an

expression equal to zero.5:approx

approx(expression)This will evaluate an expression using

floating-point arithmetic, where

possible. Equivalent to APPROXIMATE

mode.6:comDenom

comDenom(expression)This will calculate a common denominator

for all the terms in an expression and

changes the expression into a

reduced fraction.7:propFrac

propFrac(expression, var)This will return an expression as a

proper expression.8:nSolve

nSolve(equation,varOrGuess)Calculates one solution for an equation as

a floating-point number. You can use

the "with" operator to constrain the

search to a particular interval, or

you can indicate a value close to a

particular solution.9:Trig 1:tExpand

tExpand(expression)This will expand a trig expression with

angle sums and multiple angles. This is

useful when working with trigonometric

identities.9:Trig 2:tCollect

tCollect(expression)This will collect the products of integer

powers of trig functions into angle sums

and multiple angles. This is the opposite

oftExpand.A:Complex 1:cSolve

cSolve(equation, var)These are just like solve,factor, and

zeros, but they will also compute

complex results.A:Complex 2:cFactor

cFactor(expression1)A:Complex 3:cZeros

cZeros(expression, var)B:Extract 1:getNum

getNum(expression)Applies the comDenomoperation and

returns the resulting numerator.B:Extract 2:getDenom

getDenom(expression)Applies the comDenomoperation and

returns the resulting denominator.B:Extract 3:left

left(equation)This returns the left-hand side of an

equation or inequality.B:Extract 3:right

right(equation)This returns the right-hand side of an

equation or inequality.