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TI-84 Plus
TI-84 Plus Silver Edition
© 2004 Texas Instruments Incorporated
Windows and Macintosh are trademarks of their respective owners.
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Important Information Texas Instruments makes no warranty, either express 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 consequential damages in connection with or arising out of the purchase or use of these materials,
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USA FCC Information Concerning Radio Frequency Interference This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference with radio
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About the TI-84 Plus and TI-84 Plus Silver Edition The TI-84 Plus Silver Edition is the same as the TI-84 Plus except: it has more memory, and thus more spaces for graphing handheld software applications (Apps). it has interchangeable faceplates that let you customize the appearance of your TI-84 Plus Silver Edition. Since all the functions of the TI-84 Plus Silver Edition and the TI-84 Plus are the same, this guidebook can be used for either the TI-84 Plus or the TI-84 Plus Silver Editi
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Table of Contents 1 Getting Started..................................................................1 TI-84 Plus keys................................................................................. 1 Turning the TI-84 Plus on and off.................................................. 2 Home screen ................................................................................... 2 y and ƒ keys ........................................................................ 3 ‘ and y 5 ................
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Solving a System of Nonlinear Equations....................................62 Using a Program to Create the Sierpinski Triangle.....................63 Graphing Cobweb Attractors.......................................................64 Using a Program to Guess the Coefficients.................................65 Graphing the Unit Circle and Trigonometric Curves ..................66 Finding the Area between Curves ...............................................67 Using Parametric Equations: Ferris
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1 Getting Started TI-84 Plus keys y Provides access } ~ † | Let you to the function or move the cursor in character shown four directions. above each key. ‘ Clears (erases) the entry ƒ Provides line or deletes an access to the entry and answer characters shown on the home above each key. screen. Œ Displays a menu that lists Applications installed on the TI-84 Plus. Í Evaluates an expression, executes an instruction, or selects a menu item. É Turns on the TI-84 Plus. Getti
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Turning the TI-84 Plus on and off To turn on the TI-84 Plus, press É. The É key is located at the lower left corner of the TI-84 Plus. To turn off the TI-84 Plus, press the y key followed by the É key. OFF is the second function of É. When you turn off the TI-84 Plus, all settings and memory contents are retained. The next time you turn on the TI-84 Plus, the home screen displays as it was when you last used it. Automatic Power Down™ To prolong the life of the batteries, Automatic Power Down
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Example: Add 2 + 3 on the home screen. Press Result 2 Ã 3 Í Answer line Entry line Note: Results are displayed on the next line (the answer line), not on the entry line. Example: Multiply 5 x 4. Press Result 5 ¯ 4 Í y and ƒ keys Most keys on the TI-84 Plus can perform two or more functions. To use a function printed on a key, press the key. To use a function printed above a key, you must first press the y key or the ƒ key. y key Second functions are printed above the keys (the same color as
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Note: The flashing cursor changes to Þ when you press the y key. ƒ key The ƒ key lets you enter the alphabetic characters and some special symbols. To enter T, for example, press ƒ (and then release it) and then press ¶. In the guidebook this key combination is indicated by ƒ [T]. If you have several alphabetic characters to enter, press y7 to avoid having to press the ƒ key multiple times. This locks the alpha key in the On position until you press ƒ a second time to unlock it. Note: The
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Select it from the CATALOG, if the function appears on the CATALOG. For example, press y N, press † to move down to log(, and press Í to select log(. — or — Select it from a menu, if available. For example, to find the round function, press , press ~ to select NUM, then select 2:round(. Example: Enter and evaluate the expression p Q 2. Press Result y B ¯ 2 Í Interchangeable Faceplates The TI-84 Plus Silver Edition has interchangeable faceplates that let you customize the appearance of y
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Installing New Faceplates 1. Align the top of the faceplate in the corresponding grooves of the TI-84 Plus Silver Edition case. 2. Gently click the faceplate into place. Do not force. 3. Make sure you gently press each of the grooves to ensure the faceplate is installed properly. See the diagram for proper groove placement. Using the Clock Use the Clock to set the time and date, select the clock display format, and turn the clock on and off. The clock is turned on by default and is a
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Changing the Clock settings 1. Press the ~ or | to highlight the date format you want, example: M/D/Y. Press Í. 2. Press † to highlight YEAR. Press ‘ and type the year, example: 2004. 3. Press † to highlight MONTH. Press ‘ and type the number of the month (a number from 1–12). 4. Press † to highlight DAY. Press ‘ and type the date. 5. Press † to highlight TIME. Press ~ or | to highlight the time format you want. Press Í. 6. Press † to highlight HOUR. Press ‘ and type the hour. A number
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Turning the Clock On There are two options to turn the clock on. One option is through the MODE screen, the other is through the Catalog. Using the Mode Screen to turn the clock on 1. If the Clock is turned off, Press † to highlight TURN CLOCK ON. 2. Press Í. Using the Catalog to turn the clock on 1. If the Clock is turned off, Press y N 2. Press † or } to scroll the CATALOG until the selection cursor points to ClockOn. 3. Press Í. Turning the Clock Off 1. Press y N. 2. Press † or } to scrol
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Some menus close automatically when you make a selection, but if the menu remains open, press y5 to exit. Do not press ‘ to exit, since this will sometimes delete your selection. 3 Example: Enter 27 on the home screen entry line. Press Result Menus containing an arrow next to the final item continue on a second page. 4 — or — † † † Í 2 7 ¤ Í Example: Change the FORMAT menu setting to display grid points on the graph. Press Result y . Getting Started 9
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Press Result † † ~ Í s Example: Turn off the display of grid points. Press Result y . † † Í Note: Press y5 or ‘ to close the FORMAT menu and return to the home screen. Summary of menus on the TI-84 Plus Press To display Œ APPLICATIONS menu — to see a list of TI-84 Plus graphing handheld software applications (APPS). y 8 LINK menu — to communicate with another graphing handheld. y L MEMORY menu — to check available memory and manage existing memory. MATH menu — to select a math operation.
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Press To display y N CATALOG menu — to select from a complete, alphabetic list of all TI-84 Plus built-in functions and instructions. y . FORMAT menu — to define a graph’s appearance. y > MATRIX menu — to define, view, and edit matrices. y < DRAW menu — to select tools for drawing on graphs. y = DISTRIBUTIONS menu — to select distribution functions to paste to the home screen or editor screens. y : TEST menu — to select relational operators (=, ƒ, {, |, etc.) and Boolean operators (and, or,
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2 Example: Enter the expression 5 + 1, and then change the expression to 2 5 N 5. Press Result 5 ¡ Ã 1 | | { { ¹ 5 Í 2 Example: Change the example above to 5 +2 N 5 using y[ to recall the expression and y6 to insert + 2 into the expression. Press Result y [ | | y 6 Ã 2 Í 12 Getting Started
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Using ¹ and Ì Many graphing handhelds (including the TI-84 Plus) make a distinction between the symbols for subtraction and negation. Use ¹ to enter subtraction operations. Use Ì to enter a negative number in an operation, in an expression, or on a setup screen. Example: Subtract 10 from 25. Press Result 2 5 ¹ 1 0 Í Example: Add 10 to L25. Press Result Ì 2 5 Ã 1 0 Í Example: Subtract L10 from 25. Press Result 2 5 ¹ Ì 1 0 Í Note: Notice that the TI-84 Plus displays a slightly different symbol f
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Using parentheses Since all calculations inside parentheses are completed first, it is sometimes important to place a portion of an expression inside parentheses. Example: Multiply 4…1+2; then multiply 4…(1+2). Press Result 4 ¯ 1 Ã 2 Í 4 ¯ £ 1 Ã 2 ¤ Í Note: The closing parenthesis ¤ is optional. The operation will be completed if you omit it. The exception to this rule occurs when there is another operation following the parenthetical operation. In this case, you must include the closing p
