User manual TEXAS INSTRUMENTS TI-30 ECO RS

[. . . ] To turn off the TI-30X eco RS, cover the solar panel with the slide case. ¦ 2nd Functions 2nd functions are printed above the keys. For example, 2 " t calculates the cube of 2. Results The calculator can display up to 10 digits plus a minus sign (-9, 999, 999, 999 through 9, 999, 999, 999) and a 2-digit exponent. [. . . ] Note: Before using a DMS value in a calculation, you must convert it to decimal with " q. 30. 09090 " q 30. 1525 " w Temporarily displays current value as DMS. 30. 1525 " w 30¡09'09"0 Rectangular to Polar " k converts rectangular coordinates (x, y) to polar coordinates (r, q). Convert rectangular coordinates (10, 8 ) to polar. # (if necessary) 10 " [ 8 " k (display r) " [ (display q) DEG DEG DEG r DEG 8 12. 80624847 38. 65980825 Polar to Rectangular " e converts polar coordinates (r, q) to rectangular coordinates (x, y). Convert polar coordinates (5, 30) to rectangular. # (if necessary) 5 " [ 30 " e (display x) " [ (display y) DEG DEG DEG x DEG 30 4. 330127019 2. 5 6-ENG 30eco_eng_f_d_nl_fin. doc TI-30 eco RS, Config 1: Eng Deu Fra Nld Bob Fedorisko Revised: 10/21/03 11:06 AM Printed: 10/21/03 11:18 AM Page 6 of 80 Trigonometric Functions Before using the trigonometric functions ( ), *, +, " V, " W, or " X), select DEG, RAD, or GRAD with #. Note: Before using a DMS value in a calculation, you must convert it to decimal with " q. # (if necessary) 90 ) > 30 * J 1"V > . 5 J DEG DEG DEG DEG DEG DEG 1. 89. 5 Hyperbolic Functions To access hyperbolic functions, press ( and then the function ( ( ), ( *, ( +, ( " V, ( " W, ( " X). 5() D2J 5("V D2J 74. 20321058 76. 20321058 2. 312438341 4. 312438341 One-Variable Statistics "h 4 "a "\ Clears all statistical data. Adds or removes multiple occurrences 7-ENG 30eco_eng_f_d_nl_fin. doc TI-30 eco RS, Config 1: Eng Deu Fra Nld Bob Fedorisko Revised: 10/21/03 11:06 AM Printed: 10/21/03 11:18 AM Page 7 of 80 "c "d "] "_ "^ "b of a data point. Enter data point, press " \, enter frequency (1–99), press 4 to add or " a to remove data points. Number of data points. Find the sum, mean, population standard deviation, and sample standard deviation for the data set: 45, 55, 55, 55, 60, 80. The last data point is erroneously entered as 8, removed with " a, and then correctly entered as 80. " h (if STAT is displayed) n= 45 4 n= 55 " \ 3 4 n= 60 4 n= 84 n= 8"a n= 80 4 " c (sum) " ] (mean) " _ (deviation, n weighting) " ^ (deviation, n-1 weighting) 1 4 5 6 5 6 350. 58. 33333333 10. 67187373 11. 69045194 8-ENG 30eco_eng_f_d_nl_fin. doc TI-30 eco RS, Config 1: Eng Deu Fra Nld Bob Fedorisko Revised: 10/21/03 11:06 AM Printed: 10/21/03 11:18 AM Page 8 of 80 Probability A combination is an arrangement of objects in which order is not important, as in a hand of cards. " i calculates the number of possible combinations of n items taken r at a time. Calculate the number of 5-card poker hands that can be dealt from a deck of 52 cards. 52 " i 5 J 2598960. A permutation is an arrangement of objects in which the order is important, as in a race. " j calculates the number of possible permutations of n items taken r at a time. Calculate the number of possible permutations for the 1st-, 2nd-, and 3rd-place finishers (no ties) in an 8horse race. 8"j3J 336. A factorial is the product of the positive integers from 1 to n. [. . . ] 5 You can enter a value in floating-decimal, fixeddecimal, or scientific notation, regardless of display format. 1. 2345 O 5 O 65 . 1. 2345 . 65 13-ENG 30eco_eng_f_d_nl_fin. doc TI-30 eco RS, Config 1: Eng Deu Fra Nld Bob Fedorisko Revised: 10/21/03 11:06 AM Printed: 10/21/03 11:18 AM Page 13 of 80 Display Indicators M1, M2, or M3 2nd A value other than 0 in M1, M2, or M3. [. . . ]