Overview Of The Algebra Menu - Texas Instruments TI-89 Manual Book

Overview of the Algebra Menu

The Algebra Menu
Note: For a complete
description of each function
and its syntax, refer to
Appendix A.
70 Chapter 3: Symbolic Manipulation
You can use the „ Algebra toolbar menu to select the most
commonly used algebraic functions.
From the Home screen, press „ to display:
Menu Item Description
Solves an expression for a specified variable. This
solve
returns real solutions only, regardless of the
Complex Format
" and " and "
solutions, select
Factors an expression with respect to all its
factor
variables or with respect to only a specified
variable.
Expands an expression with respect to all its
expand
variables or with respect to only a specified
variable.
Determines the values of a specified variable that
zeros
make an expression equal to zero. Displays in a list.
Evaluates an expression using floating-point
approx
arithmetic, where possible. This is equivalent to
using 3 to set
(or using ¥ ¸ to evaluate an expression).
Calculates a common denominator for all terms in
comDenom
an expression and transforms the expression into a
reduced ratio of a numerator and denominator.
Returns an expression as a proper fraction
propFrac
expression.
nSolve Calculates a single solution for an equation as a
floating-point number (as opposed to
may display several solutions in a rational or
symbolic form).
This menu is also available from the
menu. Press 2 I and then select
.
9:Algebra
mode setting. Displays answers with
or " connecting solutions. (For complex
from the
A:Complex
Exact/Approx = APPROXIMATE
MATH
menu.)
Algebra
, which
solve