User manual CASIO FX-570AD

[. . . ] · Calculation Modes and Setup (page 7) Clearing the Calculation Mode and Setup Settings (page 10) · Calculator Memory Operations (page 19) · Statistical Calculations (SD/REG) (page 38) · Program Mode (PRGM) (page 62) k About this Manual · Most of the keys perform multiple functions. or a and then another key will perform the alternate function of the other key. Alternate functions are marked above the keycap. Alternate function sin­1{D} Keycap function s Alternate function operations are notated in this manual as shown below. ­1 Example: !s(sin )bw The notation in parentheses indicates the function executed by the preceding key operation. E-1 · The following shows the notation used in the manual for menu items that appear on the display (which are executed by pressing a number key). [. . . ] After you input a value, press 1G(DRG') to display the menu screen shown below. D R G 123 Example: To convert 1(D): Degrees 2(R): Radians 3(G): Grads radians and 50 grads both to degrees 2 The following procedure assumes that Deg (degrees) is currently specified for the default angle unit. (1e()/2) 1G(DRG')2(R)E (÷2 ) r 90 50 g 501G(DRG') 3(G)E 45 E-27 k Hyperbolic and Inverse Hyperbolic Functions sinh(, cosh(, tanh(, sinh (, cosh (, tanh ( ­1 ­1 ­1 A Syntax and Input sinh({n}), cosh({n}), tanh({n}), sinh ({n}), cosh ({n}), tanh ({n}) Example: sinh 1 = 1. 175201194 ws(sinh)1)E ­1 ­1 ­1 s i nh ( 1 ) 1175201194 A Notes · After pressing w to specify a hyperbolic function or 1w to specify an inverse hyperbolic function, press s, c, or t. · These functions can be used in the CMPLX Mode, but complex number arguments are not supported. k Exponential and Logarithmic Functions 10^(, e^(, log(, ln(, A Syntax and Input 10^({n}) . . . . . . . . . . . . . . . . . . . . . . . . . . loge{n} {n} (Same applies to e^(. ) (Common Logarithm) (Base {m} Logarithm) (Natural Logarithm) Example 1: log216 = 4, log16 = 1. 204119983 l2, 16)E l o g ( 2, 16 ) 4 l o g ( 16 ) l16)E 1204119983 I n ( 90 ) Base 10 (common logarithm) is assumed when no base is specified. Example 2: ln 90 (loge 90) = 4. 49980967 I90)E 449980967 e^ ( 10 ) Example 3: e = 22026. 46579 x 1I(e )10)E 10 2202646579 E-28 k Power Functions and Power Root Functions x2, x3, x­1, ^(, '(, 3'(, x'( A Syntax and Input {n} x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . {n} {m} {n} ({m})x'({n}) . . . . . . . . . . . . . . . . . . 2 2 (Square) (Cube) (Reciprocal) (Power) (Square Root) (Cube Root) (Power Root) 2+2 Example 1: (' + 1) (' ­ 1) = 1, (1 + 1) 2 2 = 16 (92)+1) (92)-1)E ('( 2 ) + 1 ) ('( 2 ) ­ 1 ) 1 (1+1)M2+2)E 2 ( 1+ 1 ) ^ ( 2+2 ) 16 Example 2: ­2 3 = ­1. 587401052 -2M2$3)E -1587401052 ­ 2^ ( 2{3 ) A Notes · The functions x , x , and x can be used in complex number calculations in the CMPLX Mode. 3 · ^(, '(, '(, x'( are also supported in the CMPLX Mode, but complex number arguments are not supported for these functions. 2 3 ­1 k Coordinate Conversion (Rectangular Polar) Pol(, Rec( Your calculator can convert between rectangular coordinates and polar coordinates. o o Rectangular Coordinates (Rec) Polar Coordinates (Pol) E-29 A Syntax and Input Rectangular-to-Polar Coordinate Conversion (Pol) Pol(x, y) x: Rectangular coordinate x-value y: Rectangular coordinate y-value Polar-to-Rectangular Coordinate Conversion (Rec) Rec(r, ) r: Polar coordinate r-value : Polar coordinate -value Example 1: To convert the rectangular coordinates (' ') to polar coordinates 2, 2 (Angle Unit: Deg) 1+(Pol)92) , 92))E Po l ('( 2 ) , '( 2 ) ) Y 2 (View the value of ) t, (Y) 45 Rec ( 2, 30 ) Example 2: To convert the polar coordinates (2, 30°) to rectangular coordinates (Angle Unit: Deg) 1-(Rec)2, 30)E 1732050808 Y (View the value of y) t, (Y) 1 A Notes · These functions can be used in the COMP, SD, and REG Modes. · The r-value (or x-value) produced by the calculation is assigned to variable X, while the -value (or y-value) is assigned to variable Y (page 22). To view the -value (or y-value), display the value assigned to variable Y, as shown in the example. · The values obtained for when converting from rectangular coordinates to polar coordinates is within the range ­180°< < 180°. · When executing a coordinate conversion function inside of a calculation expression, the calculation is performed using the first value produced by the conversion (r-value or xvalue). 2, 2 Example: Pol (' ') + 5 = 2 + 5 = 7 E-30 k Other Functions x!, Abs(, Ran#, nPr, nCr, Rnd( The x!, nPr, and nCr functions can be used in the CMPLX Mode, but complex number arguments are not supported. A Factorial (!) Syntax: {n}!2 Example: 2' 45 = 2 + 2i (Angle Unit: Deg) 292)1-()45 1-('a+bi)E 2' ( 2 ) 45 a + b i 2' ( 2 ) 45 a + b i 2 2 1E(ReIm) A Specifying Polar Coordinate Format for a Calculation Input 1+('r ) at the end of the calculation. Example: 2 + 2i = 2' 45 = 2. 828427125 45 (Angle Unit: Deg) 2 2+2W(i) 1+('r )E 2+2 i r 2+2 i r 2828427125 45 1E(ReIm) E-37 Statistical Calculations (SD/REG) k Statistical Calculation Sample Data A Inputting Sample Data You can input sample data either with statistical frequency turned on (FreqOn) or off (FreqOff). You can select the input method you want to use with the setup screen statistical frequency setting (page 9). A Maximum Number of Input Data Items The maximum number of data items you can input depends on whether frequency is on (FreqOn) or off (FreqOff). Frequency Setting Calculation Mode SD Mode REG Mode FreqOn 40 items 26 items FreqOff 80 items 40 items A Sample Data Clear All sample data currently in memory is cleared whenever you change to another calculation mode and when you change the statistical frequency setting. k Performing Single-variable Statistical Calculations To perform the example operations in this section, first select SD (N4) as the calculation mode. A Inputting Sample Data Frequency On (FreqOn) The following shows the key operations required when inputting class values x1, x2, . . . xn, and frequencies Freq1, Freq2, . . . {x1}1, (;) {Freq1}m(DT) {x2}1, (;) {Freq2}m(DT) {xn}1, (;) {Freqn}m(DT) Note If the frequency of a class value is only one, you can input it by pressing {xn}m(DT) only (without specifying the frequency). E-38 Example: To input the following data Class Value (x) 24. 5 25. 5 26. 5 Frequency (Freq) 4 6 2 24. 51, (;)4 24 . 5 ; 4I 0 L i ne = m(DT) 1 L i ne = m(DT) tells the calculator this is the end of the first data item. 25. 51, (;)6m(DT) 2 L i ne = 26. 51, (;)2m(DT) 3 Frequency Off (FreqOff) In this case, input each individual data item as shown below. {xn}m(DT) A Viewing Current Sample Data After inputting sample data, you can press c to scroll through the data in the sequence you input it. The $ symbol indicates there is data below the sample that is currently on the display. Example: To view the data you input in the example under "Inputting Sample Data" on page 38 (Frequency Setting: FreqOn) A I 0 x 1= c 245 F r e q 1= c 4 E-39 c x 2= 255 F r eq2= c 6 When the statistical frequency setting is FreqOn, data is displayed in the sequence: x1, Freq1, x2, Freq2, and so on. In the case of FreqOff, it is displayed in the sequence: x1, x2, x3, and so on. You can also use f to scroll in the reverse direction. A Editing a Data Sample To edit a data sample, recall it, input the new value(s), and then press E. Example: To edit the "Freq3" data sample input under "Inputting Sample Data" on page 38 Af F r eq3= 2 F r eq3= 3E A Deleting a Data Sample To delete a data sample, recall it and then press 1m(CL). 3 Example: To delete the "x2" data sample input under "Inputting Sample Data" on page 38 Accc x 2= 255 L i ne = 1m(CL) Note · The following shows images of how the data appears before and after the delete operation. [. . . ] · Pressing A will clear the calculation expression you input immediately before the error occurred. Note that a calculation expression that causes an error will not be included in calculation history. A Error Message Reference This section lists all of the error messages that the calculator displays, as well as their causes and what you need to do to avoid them. Math ERROR Cause · An intermediate or the final result of the calculation falls outside of the allowable calculation range. · You are trying to perform an illegal mathematical operation (such as division by zero). [. . . ]