Auditoria De Sistemas

TI

TI-89/TI-92 Plus/Voyage™ 200
Simultaneous Equation Solver

How To…
Start the Application
Enter Data
Solve a Problem

Store Values
Navigate
Change Format

Examples
3 Equations, 3 Unknowns
Undefined Variable

Overdetermined Matrix
Underdetermined Matrix

More Information
Customer Support

2/7/02

Error Messages

© 2001, 2002 Texas Instruments

ImportantInformation
Texas Instruments makes no warranty, either expressed or
implied, including but not limited to any implied warranties of
merchantability and fitness for a particular purpose, regarding
any programs or book materials and makes such materials
available solely on an "as-is" basis.
In no event shall Texas Instruments be liable to anyone for
special, collateral, incidental, or consequentialdamages in
connection with or arising out of the purchase or use of these
materials, and the sole and exclusive liability of Texas
Instruments, regardless of the form of action, shall not exceed
any applicable purchase price of this item or material. Moreover,
Texas Instruments shall not be liable for any claim of any kind
whatsoever against the use of these materials by any other
party.Graphing product applications (Apps) are licensed. See the
terms of the license agreement for this product.

Microsoft, Windows, Windows NT, Apple, Macintosh, Mac, and Mac OS are trademarks of
their respective owners.
TI-89 / TI-92 Plus / Voyage™ 200 PLT Simultaneous Equation Solver App

Page 2

What Is Simultaneous Equation Solver?
Simultaneous Equation Solver finds solutions to systemsof
linear equations. It provides a convenient, easy-to-use interface
to simplify setting up a problem, solving it, and exploring the
solution. You can:
•

Enter, load, and edit coefficient matrices and up to five
vectors representing different right sides.

•

Store the solution as a vector (an nx1 matrix).

•

Display solutions as a list of values or in reduced row
echelon form(RREF).

•

Solve over-determined systems of equations (systems in
which there are more equations than unknowns).

•

Solve under-determined systems of equations (systems in
which there are fewer equations than unknowns).

•

Solve systems containing both numeric and symbolic
coefficients.

•

Identify whether a given system has a unique solution, an
infinite number of solutions,or no solution.

TI-89 / TI-92 Plus / Voyage™ 200 PLT Simultaneous Equation Solver App

Page 3

Entering Data
Entering data manually
1. Start Simultaneous Equation Solver and select New.

2. Enter the number of equations and press D. Values entered
in this dialog box must be integers from 2 to 30.
3. Enter the number of unknowns.
4. Press ¸ ¸ to accept the problem size and displaythe matrix. The first coefficient is selected, and its matrix row
and column designators are displayed on the entry line.

TI-89 / TI-92 Plus / Voyage™ 200 PLT Simultaneous Equation Solver App

Page 4

5. Enter the first coefficient and press ¸. The cursor returns
to the matrix and moves to the next column (right). You can
change the cursor to move to the next row (down) instead in
theFORMATS dialog box.
You can enter a real or complex value or an expression that
resolves to a real or complex value. You can also enter
symbolic data.

Loading existing data
You can load an existing matrix as all or part of the problem from
within Simultaneous Equation Solver by using either of the
following methods.
•

Press ƒ 1:Load Augmented A|b.

•

Press „ 1:Augmented A|b,2:Coefficient A, 3:Constant b, or
4:Two Matrices A and b.

TI-89 / TI-92 Plus / Voyage™ 200 PLT Simultaneous Equation Solver App

Page 5

Editing coefficients
1. Move the cursor to a coefficient and press ¸. The cursor
moves to the entry line.
2. Edit the value and press ¸. The new value appears in
the matrix.
Clearing coefficients
Press ƒ 8:Clear All.
Starting a new problem
Press ƒ...