Évaluations - 2, GPA: 4.5
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Facilité d'utilisation
Basic Arithmetic .................................. 3 Percents ......................................... 4 Fractions5 ......................................... Powers and Roots 6 ................................ Logarithmic Functions 6 ............................ Angle Units....................................... 7 DMS 7 ............................................. Rectangular to Polar 8 .............................. Polar to Rectangular 8 .............................. Trigonometric Functions 9 .......................... Hyperbolic Functions 9 ............................. One-Variable Statistics............................ 10 Probability........................................ 12 Clearing and Correcting 13 ........................... Constants (Repeated Operations) 13 ................. Memory 14 .......................................... Order of Operations............................... 15 Notation16 .......................................... Display Indicators................................. 17 Error Conditions .................................. 18 In Case of Difficulty 19 ............................... Battery Replacement (TI.30Xa) 20 ................... TI Product, Service, and Warranty Information21 ...... a 1997 Texas Instruments Incorporated 1 Basic Operations Basic Operations TI-30Xa (battery) ¦ |turns on the TI-30Xa. ¦ }turns off the TI-30Xa and clears display, settings, and pending operations, but not memory. ¦ APD™ (Automatic Power Down™) turns off the TI-30Xa automatically if no key is pressed for about 5 minutes, but does not clear display, settings, pending operations, or memory. Note: |after APD retrieves display, pending operations, settings, and memory. TI-30Xa Solar ¦ To turn on the TI-30Xa Solar, expose the solar panel to light and press !. Note: Always press !to clear the calculator because memory and display may contain incorrect numbers. ¦ To turn off the TI-30Xa Solar, cover the solar panel with the slide case. 2nd Functions 2nd functions are printed above the keys. "selects the 2nd function of the next key pressed. For example, 2 "tcalculates the cube of 2. 2 Results 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. Results with more than 10 digits display in scientific notation. Basic Arithmetic D>82 60 D5 812 J 120. J Completes all pending operations. With constant (K), repeats the operation and value. O Changes sign of value just entered. 1 D8 OD12 J 5. 67 Parenthetical expression (up to 15 open). Jcloses all open parentheses. . Pi is calculated with 12 digits (3.14159265359), displayed with 10 digits (3.141592654). 2 8.J 6.283185307 3 Percents Percents Percentage ( 5% of 250) 250 85 "u 0.05 J 12.5 Ratio (Ratio of 250 to 5) 250 25 "u 0.05 J 5000. Add-On (5% add-on of 250) 250 D5 "u 12.5 J 262.5 Discount (5% discount of 250) 250 >5 "u 12.5 J 237.5 4 Fractions Fractions b Fc Enters a proper or improper fraction, bac (b {6 digits, c {3 digits). When possible, improper fractions are displayed as mixed numbers. 3 F4 3.4 83 J 21.4 Single-variable functions display decimal results. 1 F2 0 0.25 a Fb Fc Enters the mixed fraction a bac. (a, b, c {3 digits each, with the total digits {8). 6 F4 F6 64.6 J 62.3 "s Toggles display between a mixed number and an improper fraction. 30 F4 30.4 "s 71.2 "s 15.2 "s 71.2 "y Toggles display between fraction and decimal. 55 F24 55.24 "y 2.291666667 "y 27.24 If a result would overflow or if fixed decimal is 0, no fraction to decimal conversion occurs. It is not an error. Denominator must be a whole number {999. 5 Powers and Roots Powers and Roots / 8 /D4 /J 0.375 0 6 0D2 J 38. 1 256 1D4 1J 18. "t 2 "tD2 J 10. "z 8 "zD4 J 6. , 5 ,3 J 125. "Y 8 "Y3 J 2. Logarithmic Functions $ 15.32 $ 1.185258765 D12.45 $J 2.280428117 "R 2 "R>10 0J 0. % 15.32 % 2.729159164 D12.45 %J 5.250879787 "S .693 "S 1.999705661 D1 J 2.999705661 (e=2.71828182846) 6 Angle Units Angle Units # Cycles angle-unit setting between degrees, radians, and grads without affecting displayed number. "Q Cycles (converts) angle-unit setting between degrees, radians, and grads for display, entry, and calculation. 45 DEG 45 "Q RAD 0.785398163 "Q GRAD 50. "Q DEG 45. DMS Enter DMS (Degrees/Minutes/Seconds) values as D.MMSSs, using 0s as necessary: D degrees (0–7 digits) . decimal-point separator MM minutes (must be 2 digits) SS seconds (must be 2 digits) s fractional part of a second For example, enter 48.5'3.5" as 48.05035. Note: Before using a DMS value in a calculation, you must convert it to decimal with "q. "q Interprets display as DMS and converts it to decimal. 30.09090 "q 30.1525 "w Temporarily displays current value as DMS. 30.1525 "w 30.09'09"0 7 Rectangular to Polar Rectangular to Polar "kconverts rectangular coordinates (x,y) to polar coordinates (r,q). Convert rectangular coordinates(10,8) to polar. #(if necessary) DEG 10 "[8 DEG 8 "k(display r) DEG r 12.80624847 "[(display q) DEG 38.65980825 Polar ...