User manual TEXAS INSTRUMENTS TI-30X IIS

[. . . ] TI-30X II TI-30X S: A Guide for Teachers Developed by Texas Instruments Incorporated Activities developed by Gary Hanson and Aletha Paskett Illustrated by Jay Garrison About the Authors Gary Hanson and Aletha Paskett are math teachers in the Jordan Independent School District in Sandy, Utah. They developed the Activities section and assisted in evaluating the appropriateness of the examples in the How to Use the TI-30X S section of this guide. Important Notice Regarding Book Materials 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 consequential damages 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 the purchase price of this book. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party. [. . . ] The transparency master showing the Equation Operating System (EOS TM) demonstrates the order in which the TI-30X S completes calculations. Use D E to change the order of operations and, therefore, change the result. Example: 1 + 2 x 3 = 7 (1 + 2) x 3 = 9 1 2 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X S: A Guide for Teachers 40 Equation Operating System 1 (first) 2 Expressions inside D E EOS Functions that need a E and precede the expression, such as the >, A, or %' menu items Functions entered after the expression, such as F and angle unit modifiers (, , , r, g) Fractions Exponentiation (G) and roots (%) Negation (M) Permutations (nPr) and combinations (nCr) Multiplication, implied multiplication, and division Addition and subtraction Conversions (%s, %", and 8DMS) 3 4 5 6 7 8 9 10 11 (last) < completes all operations and closes all open parentheses. 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X S: A Guide for Teachers 41 Order of Operations 1+2x3= Press Display 1+2*3 ' TVDE 7. 1T2V3 < (1 + 2) x 3 = Press DEG Display ( 1+2 ) *3 1+2) ' D1T2EV 3< DEG 9. 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X S: A Guide for Teachers 42 Constant Keys 1. < places the contents of K at the end of the expression in the display. 5 Notes The examples on the transparency masters assume all default settings. If you do not enter a value, 0 is assumed, and Ans will appear in the display. Press < to place the contents of K at the end of the expression and evaluate it. The result is stored in Ans, which is displayed, and the constant is used to evaluate the new expression. 1 2 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X S: A Guide for Teachers 43 Constant Three people babysit for $3. 25 each per hour. How much did each person earn? Press Display K= %TM %TM V 3. 25 < 16 < 12 < 17 < %TM (Constant mode is off. ) 1999 TEXAS INSTRUMENTS INCORPORATED K = *3. 25 ~ 16*3. 25 ~ DEG DEG K ' DEG K ' DEG 52. K ' DEG 39. K ' 55. 25 DEG K ' DEG K TI-30X S: A Guide for Teachers 44 Decimals and Decimal Places Keys 1. % , displays the following menu, which lets you set the number of decimal places. 6 Notes The examples on the transparency masters assume all default settings. % , 8 removes the setting and returns to standard notation (floating decimal). The FIX setting affects all decimal results and the mantissa of scientific and engineering notation results. The TI-30X S automatically rounds the result to the number of decimal places selected. For example, when the decimal is set to 2 places, 0. 147 becomes 0. 15 when you press <. The TI-30X S also rounds or pads resulting values with trailing zeros to fit the selected setting. For example, when the decimal is set to 5 places, 0. 147 becomes 0. 14700 when you press <. All results are displayed to the FIX setting until you clear the setting by either pressing % , 8 or selecting F(floating) on the decimal notation menu. After pressing % , , you can select the number of decimal places in 2 ways: Press !or " to move to the number of decimal places you want, and then press <, or Press the number key that corresponds to the number of decimal places you want. 1 2 FIX affects only the results, not the entry. 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X S: A Guide for Teachers 45 Decimal, FIX Round 12. 345 to the hundredths place, to the tenths place, and then cancel the FIX setting. Press Display 12. 345 DEG 8 % 12 8 345 % """ < < F0123456789 _ DEG F01_3456789 2 DEG 12. 345 FIX DEG 12. 345 FIX ' 12. 35 DEG % 1 % 8 1999 TEXAS INSTRUMENTS INCORPORATED 12. 345 FIX ' 12. 3 DEG 12. 345 ' 12. 345 DEG TI-30X S: A Guide for Teachers 46 Memory Keys 1. A B C D E Lets you select a variable in which to store the displayed value. [. . . ] In statistics, n = 1. DOMAIN You specified an argument to a function outside the valid range. x is not an integer between 0 and 69. EQUATION LENGTH ERROR FRQ DOMAIN OVERFLOW STAT An entry exceeds the digit limits (88 for entry line and 47 for statistics or constant entry lines); for example, combining an entry with a constant that exceeds the limit. FRQ value (in 1-variable statistics) < 0 or >99, or not an integer. |q| , 110, where q is an angle in a trig, hyperbolic, or R4Pr function. [. . . ]