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McGraw-Hill TI-89 Quick Start Manual

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....T–5....
(page 1)
The Computer Algebra System (CAS)
on the TI-89 Calculator
The TI-89 calculator features a Computer Algebra System (CAS) engine that allows you
to perform algebraic operations, such as manipulating and solving algebraic equations.
The following overview will provide you with what you need to know to use the CAS on the
TI-89 calculator.
Functions and Applications 11: Teacher's Resource
Copyright © 2008 McGraw-Hill Ryerson Limited
T–5 The Computer Algebra System (CAS) on the TI-89 Calculator

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Summary of Contents for McGraw-Hill TI-89

  • Page 1 The Computer Algebra System (CAS) on the TI-89 Calculator The TI-89 calculator features a Computer Algebra System (CAS) engine that allows you to perform algebraic operations, such as manipulating and solving algebraic equations. The following overview will provide you with what you need to know to use the CAS on the TI-89 calculator.
  • Page 2 Home screen shown, press the " key. The TI-89 Keyboard Refer to the annotated picture of the TI-89 calculator. Most keys have a primary function, as well as one or two secondary functions. For example, the À key is usually pressed to enter the number 1.
  • Page 3 2 p 3 Z 4 | 56 e 8. Then, press ¸. The answer is 155. Like the TI-83 Plus and TI-84 plus, the TI-89 has two negative keys, the minus key · and the subtract key |. Use the subtract key when you are subtracting one expression from another, as in the example above.

  • Page 4: Expanding Expressions

    Use a similar procedure to divide both sides by 3. Notice that the CAS displays the value of x that satisfies the equation. Functions and Applications 11: Teacher’s Resource Copyright © 2008 McGraw-Hill Ryerson Limited T–5 The Computer Algebra System (CAS) on the TI-89 Calculator...
  • Page 5 , and press ¸. For More Information You can obtain more information on the operation of your TI-89 calculator in the calculator manual. You can also download an electronic version of the manual in PDF format at www.education.ti.com. Functions and Applications 11: Teacher’s Resource Copyright ©...