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Summary of Contents for Texas TI-83
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Page 1: Table Of Contents
Graphics calculator instructions Contents: Basic calculations Basic functions Secondary function and alpha keys Memory Lists Statistical graphs Working with functions... -
Page 2: Getting Started
(brackets), powers, and square roots. It also explains how to round off using your calculator. NEGATIVE NUMBERS To enter negative numbers we use the sign change key. On both the TI-83 and Casio this (¡) looks like Simply press the sign change key and then type in the number. -
Page 3: Casio Fx-9860G
FRACTIONS On most scientific calculators and also the Casio graphics calculator there is a special key for entering fractions. No such key exists for the TI-83, so we use a different method. Texas Instruments TI-83 To enter common fractions, we enter the fraction as a division. -
Page 4: Basic Functions
For example, to enter 25 we type 25 Note that there are special keys which allow us to quickly evaluate squares. Numbers can be squared on both TI-83 and Casio using the special key For example, to enter 25 we type 25... - Page 5 To enter square roots on either calculator we need to use a secondary function (see the Secondary Function and Alpha Keys Texas Instruments TI-83 The TI-83 uses a secondary function key 36 we press To enter The end bracket is used to tell the calculator we have finished entering terms under the square root sign.
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Page 6: Inverse Trigonometric Functions
GRAPHICS CALCULATOR INSTRUCTIONS INVERSE TRIGONOMETRIC FUNCTIONS To enter inverse trigonometric functions, you will need to use a secondary function (see the Secondary Function and Alpha Keys Texas Instruments TI-83 ¡1 ¡1 ¡1 The inverse trigonometric functions sin , cos and tan are the secondary functions of respectively. -
Page 7: C Secondary Function And Alpha Keys
. The answer is 2 £ 10 SECONDARY FUNCTION AND ALPHA KEYS Texas Instruments TI-83 The secondary function of each key is displayed in yellow above the key. It is accessed by pressing the key, followed by the key corresponding to the desired secondary function. - Page 8 Values can be stored into the variable letters A, B, ..., Z using either calculator. Storing a value in memory is useful if you need that value multiple times. Texas Instruments TI-83 Suppose we wish to store the number 15:4829 for use in a number of calculations.
- Page 9 If you wish to view the answer in fractional form, press RECALLING PREVIOUS EXPRESSIONS Texas Instruments TI-83 The ENTRY function recalls previously evaluated expressions, and is used by pressing ENTER This function is useful if you wish to repeat a calculation with a minor change, or if you have made an error in typing.
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Page 10: Creating A List
Lists are used for a number of purposes on the calculator. They enable us to enter sets of numbers, and we use them to generate number sequences using algebraic rules. CREATING A LIST Texas Instruments TI-83 1 to take you to the list editor screen. Press... - Page 11 Casio models without the List function can do this by pressing (LIST) OPTN (List) 1 NUMBER SEQUENCES Texas Instruments TI-83 You can create a sequence of numbers defined by a certain rule using the seq command. I to enter This command is accessed by pressing STAT the OPS section of the List menu, then selecting 5:seq.
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Page 12: Fstatistical Graphs
In this section we will produce descriptive statistics and graphs for the data set 5 2 3 3 6 4 5 3 7 5 7 1 8 9 5. Texas Instruments TI-83 Enter the data set into List1 using the instruc- tions on page 18. -
Page 13: Working With Functions
StatGraph 2. Press (DRAW) to draw the side-by-side boxplots. WORKING WITH FUNCTIONS GRAPHING FUNCTIONS Texas Instruments TI-83 Pressing selects the Y= editor, where you can store functions to graph. Delete any unwanted functions by scrolling down to the function and pressing... - Page 14 It is often useful to find the points of intersection of two graphs, for instance, when you are trying to solve simultaneous equations. Texas Instruments TI-83 12 ¡ x We can solve y = 11 ¡ 3x and y = simultane- ously by finding the point of intersection of these two lines.
- Page 15 In the special case when you wish to solve an equation of the form f (x) = 0, this can be done by graphing y = f (x) and then finding when this graph cuts the x-axis. Texas Instruments TI-83 ¡ 3x...
- Page 16 As a general rule it is best to start with a large viewing window to make sure all the features of the graph are visible. You can then make the window smaller if necessary. Texas Instruments TI-83 Some useful commands for adjusting the viewing window...
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