Casio Algebra FX 2.0 Calculator
Contents
1. 7 1 5 Using the CAS Computer Algebra System Mode E Answer Ans Memory and Continuous Calculation Answer Ans memory and continuous calculation can be used just as with standard calculations In the Algebra Mode you can even store formulas in Ans memory Example To expand X 1 and add the result to 2X Fi TRNS 3 expand exrancdi gksri13285 0 ka GE CO 0J 23 OJ 69 PETS Continuing Hnztz58 xe dyed GE 2 kal e E Replay Contents Replay memory can be used in the input area After a calculation is complete pressing or in the input area recalls the formula of the last calculation performed After a calculation or after pressing Ac you can press or to recall previous formulas E Moving the Cursor Between Display Areas When lt gt A Y indicates a calculation result that does not fit on the display the cursor keys perform output area scrolling To use the Replay Function from this condition press F6 gt F2 SW lt gt A V change to a dotted line display to indicate that cursor key operations control the input area Pressing F2 SW again moves the cursor back to the output area Pressing F6 gt Fi CLR 3 ALLEQU You can input up to 255 bytes of data into the deletes Eqn memory Ans memory and input area Replay memory contents 19990401 7 1 6 Using the CAS Computer Algebra System Mode SET UP Items e Angle Unit of angular measurement spe2. Chapter s Computer Algebra System and Tutorial Modes 7 1 Using the CAS Computer Algebra System Mode 7 2 Algebra Mode 7 3 Tutorial Mode 7 4 Algebra System Precautions 7 1 1 Using the CAS Computer Algebra System Mode 7 1 Using the CAS Computer Algebra System Mode On the Main Menu select the CAS icon to enter the CAS Mode The following table shows the keys that can be used in the CAS Mode COPY PASTE SETUP GeT H COPY UGE Ces Cre amim Jules Eee un ganag TEI Ibe pe Ome sel Bl inputting and Displaying Data Input in the Algebra Mode is performed in the upper part of the display which is called the input area You can input commands and expressions at the current cursor location Br BRT sh aa TENs cA deana ean RFA P l CLR Si FAHS r1 Calculation results appear in the lower part of the display which is called the output area When a calculation produces an equation or inequality the lower part of the display is divided between a natural result display area for the result and a formula number area for the formula number as shown below mI RENTRTAUEER ZeTVYTROCRM 19990401 7 1 2 Using the CAS Computer Algebra System Mode If all the result does not fit on the display use the cursor keys to scroll it tExzrFandisin A B costi sintAs sint Bs r k E Performing an Algebra Mode Operation There are two methods that you can use for input i
3. no solution You can press F6 AUTO to change to the Auto Mode eeeee Example Solve 4X 8 in the Manual Mode Linear Equation AX B F2 INPUT 4 E9 8 P Fe EXE rFclEanti F MANU 4 28 O Fa ea D DJ GJ 4 eantliz 4 EXE Am OS H 4 4 F1 TRNS 1 smplty zimrelif teancz eqn 2 gms E EXE F5 JUDG 1 DISP simelifyteant2 TRUE H Press ESC 19990401 7 3 7 Tutorial Mode e eeeee Example 4X 16 True X 2 X 2 Besides TRUE the messages shown below can also appear as the result of verification CAN NOT JUDGE appears in the Manual Mode while the other messages appear in both the Verify Mode and Manual Mode dne 16 hi Ee FALSE Press ESC Ef NOT COMPLETE ANOTHER PSHE S EXI Press ESC speaken CAH HOT JUDGE E Press ESC e andConnect andCon Function Connects two inequalities into a single expression Syntax andConnect Ineq 1 Ineq 2 eeee Example To combine X gt 1 and X lt 3 into a single inequality F2 EQUA 8 andCon x87 FA EQUA 3 INEQUA gt GJ G 623 E2 EQUA D INEQUA 2 8 83 1 X 3 19990401 7 3 8 Tutorial Mode E Auto Mode Press F6 AUTO to enter the Auto Mode In the Simultaneous Equation Mode you must also select SBSTIT Substitution Method or ADD SU Addition Subtraction Method The Substitution Method first tra
4. 19990401 7 1 8 Using the CAS Computer Algebra System Mode solve Function Solves an equation Syntax solve Exp variable solve Exp 1 Exp n variable 1 variable n eeee Example To solve AX B 0 for X F3 TRNS 4 solve um KaT A x B uei loa B sur C 9 E A eeee Example To solve simultaneous linear equation 3X 4Y 5 2X 3Y 8 F1 TRNS 4 solve su 9 C8 m GE X E 4 ue 2 Y eA C3 2 8 CJ 2 m 3 X 2 3 uj Y GF C 2 8 en S 3 C83 G9 Gd C n0 GE X C7 m Y 9r CJ C Be e X is the default when no variable is specified e tExpand tExpnd Function Employs the addition theorem to expand a trigonometric function Syntax tExpand Exp eeee Example To employ the addition theorem to expand sin A B Fi TRNS S TRIG 1 tExpnd sin Kam A B amp x cos B sin A sin B cos A tCollect tCollc Function Employs the addition theorem to transform the product of a trigonometric function to a sum Syntax tCollect Exp Example To employ the addition theorem to transform sin A cos B to trigonometric sum TRNS S TRIG 2 Coll xi i MN LES Sin PH CeT A Cos ue eg B E5 19990401 7 1 9 Using the CAS Computer Algebra System Mode e trigToExp trigToE Function Transforms a trigonometric or hyperbolic function to an expo
5. of coefficients e SMPL selection of coefficients from samples SEED selection of a number from 1 to 99 specification of the same number displays the same expression F1 RAND or generates random coefficients and defines the expression F2 INPUT displays the coefficient input screen Input coefficients pressing Ex after each After you finish inputting all the coefficients press F6 EXE to define the coefficient F3 SMPL displays a number of preset sample expressions Highlight the one you want to use and then press to define it Pressing F4 SEED displays a number selection screen When you want to create the same problem on another calculator specify an appropriate matching number and press Ex No matter what method you use the expression you define is displayed in the output area You can copy an expression to the Graph Mode as a graph function e L COP R COP copy left side element right side element as a graph function Simultaneous Equation Mode e 1 COP 2 COP copy first second expression as a graph function In the case of an inequality the inequality Simultaneous equations are transformed to the symbols are also copied format Y AX B when copied 19990401 7 3 4 Tutorial Mode E Specifying the Solve Mode You can select one of the following three solve modes for the displayed expression e VRFY Verify Mode In this mode
6. sin X X when X 0 EJ CALC 3 lim ss mam 9 23 C9 w Direction can be positive from right or negative from left 19990401 6x5 7 1 13 Using the CAS Computer Algebra System Mode ex Function Calculates a sum Syntax Exp variable start value end value e eeeee Example To calculate the sum as the value of X in X2 changes from X 1 through X 10 F2 CALC 4 2 kJ GC x67 6 CD GC Q0 9 83 e JI Function Calculates a product Syntax II Exp variable start value end value 385 14400 eeee Example To calculate the product as the value of X in x2 changes from X 1 through X 2 5 E3 CALC 11 Kay 3 C ka C 1 9 5 e e taylor Function Finds a Taylor polynomial Syntax taylor Exp variable order center point eooo Example To find a 5th order Taylor polynomial for sin X with respect to X 0 5 3 FA CALC 8 taylor Gs K C a 8 C 9 E x The default center point is zero arcLen Function Returns the arc length Syntax arcLen Exp variable start value end value Example To determine the arc length for X from X 0 to X 1 F2 CALC z arcLen X In 4V5 8 In 2 ml Ota 6 9 0 9 4 19990401 2 2 7 1 14 Using the CAS Computer Algebra System Mode e tanLine tanLin Function Returns the expression for a tangent line Syntax tanLine Exp variable variable valu
7. 15766546E 19 Display Norm1 If you use approx to execute an expression that contains a variable the value assigned to the variable in general variable memory variable memory recalled using RUN MAT is used for the calculation eeee Example 5A 3 when A 1 3 Normal 5 umi X7 A GE 3 Ee 5A 3 approx F1 TRNS eg approx 8 A CE 3 Eg 9 5 A Syntax ERROR occurs if a calculation is Example 1 approx 2 Syntax ERROR performed in front of to the left of the approx command 19990401 7 1 12 Using the CAS Computer Algebra System Mode e diff Function Differentiates an expression Syntax diff Exp variable order derivative diff Exp variable order derivative diff Exp variable order derivative eeee Example To differentiate X with respect to X E3 CALC 1 diff 6 Ex e X is the default when no variable is specified e 1 is the default when no order is specified ef Function Integrates an expression Syntax f Exp variable integration constant J Exp variable integration constant J Exp variable lower limit upper limit eeeee Example To integrate X with respect to X E3 CALC 2 J Kan xc Ex e X is the default when no variable is specified elim Function Determines the limits of a function expression Syntax lim Exp variable point direction Example To determine the limits of
8. To add 15 to both sides of the equation 6X 15 X 7 which is stored in equation memory 3 Fa eqn 3 DJ O 1J 5 w 6X X 8 19990401 7 1 17 Using the CAS Computer Algebra System Mode clear clrVar Function Clears the contents of specific equation A to Z r 0 Syntax clear variable clear variable list eeee Example To clear the contents of variable A F6 gt ED CLR 1 clrVar rH 67 A E5 E eeee Example To clear the contents of variables X Y and Z F9 gt 3 CLR 11 clrVar ary 3 um GE X C9 2 Y G m 0 Z rj 3 e clearVarAll VarAll Function Clears the contents of all 28 variables A to Z r 0 Syntax clearVarAll When you start out with memories A B C and D for example and delete memories A and B the display shows only C D because they are the only memories remaining 19990401 7 2 1 Algebra Mode 7 2 Algebra Mode The CAS Mode automatically provides you with the final result only The Algebra Mode on the other hand lets you obtain intermediate results at a number of steps along the way On the Main Menu select the ALGEBRA icon to enter the Algebra Mode The screens in this mode are the same as those in the CAS Mode Operations in the Algebra Mode are identical to those in the CAS Mode except for a number of limitations Also the following commands are available in the Algebra Mode only a
9. cification e Deg Rad degrees radians Answer Type Result range specification e Real CpIx real number complex number e Display Display format specification for approx only e Fix Sci Norm number of decimal places number of significant digits normal display format E Graph Function Pressing F5 GRPH displays the graph formula screen You can execute SEL and F2 DEL from this screen Pressing Fe DRAW graphs the SET condition expressions E RECALL ANS Function Pressing F6 gt F3 R ANS recalls Ans Memory contents 19990401 7 1 7 Using the CAS Computer Algebra System Mode Algebra Command Reference The following are the abbreviations used in this section Exp Expression value formula variable etc Eq Equation e neq Inequality Anything enclosed within square brackets can be omitted expand Function Expands an expression Syntax expand Exp Eq Ineq eeeee Example To expand X 2 2 X2 44X44 F1 TRNS 1 expand X 2 e9 e rFactor rFctor Function Factors an expression up to its root Syntax rFactor Exp Eg Ineq eeeee Example To factor the X2 3 F3 TRNS 2 rFctor ka A O 3 9 X N3 X 3 e factor Function Factors an expression Syntax factor Exp Eg Ineq eeeee Example To factor X2 4X 4 EI TRNS 3 factor ka x3 C3 4 3 x 2
10. e X a X has one solution X a linear equation default e X a b X has two solutions X a X b quadratic equation default X a Y X and Y have one solution each X a Y b simultaneous equation default X a X zs a linear inequality default X lt a b lt X lt a b lt Xor Xsa bs X e a lt X lt b a X b as Xs bor X a Identi Identity identity of left side and right side Many Many Solutions many solutions No sol No Solution no solution 19990401 7 3 5 Tutorial Mode You can press F4 MANU to change to the Manual Mode or F5 AUTO to change to the Auto Mode eeee Example To solve 4X 8 in the Verify Mode Linear Equation AX B E2 INPUT 4 63 8 E5 FS EXE 4 8 CHEER F4 VRFY 2 3 F JUDG 19990401 7 3 6 Tutorial Mode E Manual Mode Press F5 MANU to enter the Manual Mode As with the Algebra Mode the screen is divided between an input area and a display area This means you can select Algebra Mode commands from the function menu transform the expression and solve it Operation is the same as that in the Algebra Mode After you obtain a result you can press F5 JUDG to determine whether or not it is correct e DISP Determines whether the expression in the display area is a correct solution e Indenti identity of left side and right side e Many many solutions No sol
11. e at point of tangency e eeeee Example To determine the expression for a line tangent with X3 when X 2 F3 CALC 8 tanLin KAI AJ 3 O ao 2 e 12X 16 denominator den Function Extracts the denominator of a fraction Syntax denominator Exp eeee Example To extract the denominator of the fraction X 2 Y 1 F2 CALC 9 EXTRCT 1 den OMA EE C22 CJ C33 CO Gi E Y E C2 9 Y 1 e numerator num Function Extracts the numerator of a fraction Syntax numerator Exp e eeeee Example To extract the numerator of the fraction X 2 Y 1 FQ CALC S EXTRCT 2 num CO uni CE X CE 2 DJ CJ CO ung 2 Y 2 C0 99 X42 e gcd Function Returns the greatest common denominator Syntax gcd Exp Exp eeee Example To determine the greatest common denominator of X 1 and x2 3x 4 F2 CALC an ged Kan 1 CJ kan 23 72 3 ka 4 E X41 19990401 7 1 15 Using the CAS Computer Algebra System Mode e rclEqn Function Recalls multiple eqn memory contents Syntax rclEqn memory number memory number Example To recall the contents of equation memory 2 and equation memory 3 F3 EQUA 2 rclEqn 2 G 3 Ej 3X Y 7 3X 6Y 63 The memory numbers of equations produced as the result of a recall are not updated e rclAllEqn rclAII Function Recall all eqn memory contents Syntax rclAllEqn The memory numb
12. ers of equations produced as the result of a recall are not updated e rewrite rewrit Function Moves the right side element to the left side Syntax rewrite Eq Ineq eeee Example To move the right side element of X 3 5X X to the left side F3 EQUA 4 rewrit Ker GE 3 e J 8 Ka a 3 Ex X2 4X 43 0 e exchange exchng Function Exchanges the right side and left side elements Syntax exchange Eq Ineq eeeee Example Exchange the left side and right side elements of 3 gt 5X 2Y F3 EQUA 8 exchng 3 F3 EQUA B1 INEQUA 1 gt 8 m E X O C2 m Y Ex 5X 2Y 3 19990401 7 1 16 Using the CAS Computer Algebra System Mode eliminate elim Function Assigns an expression to a variable Syntax eliminate Eq Ineq 1 variable Eq 2 e eeeee Example To transform Y 2X 3 to X and then substitute 2X 3Y 2 5 F3 EQUA 6 elim 2 uni GE X GE 3 um Y GH GI 8 CG m E X GI m Y 86 C 2 ue GE X CE 3 Ex 4Y 3 5 e getRight getRgt Function Gets the right side element Syntax getRight Eq Ineq eeee Example To extract the right side element of Y 2X2 3X4 5 F3 EQUA 7 getRgt ug S Y sir C 2 m 3 X c5 GE 8 uj G5 X C 8 ex 2X2 3X 4 5 eqn Function Recalls eqn memory contents Syntax eqn memory number e eeeee Example
13. ff sim Kan CJ difftsin J A 25 CJ E9 3 E27 A 3 tosQD sienum A 1 real number A gt 0 2Use the approx command before inputting to 1 real number A 0 register a value to a general variable Example approx 1 A TT A imaginary number Undefined A 0 19990401 7 1 4 Using the CAS Computer Algebra System Mode E Function Memory and Graph Memory Function memory lets you store functions for later recall when you need them With graph memory you can store graphs in memory Press the key and then input the name of the graph eeeee0e Example To differentiate f cos X which is assigned to function memory f at X F2 CALC 1 diff en F8 FMEM difitinl W5 3 fn CU 9 ka D e sint eeeee Example To differentiate Y1 cos X which is assigned to graph memory Y1 atX F2 CALC 1 diff diffz Wwl s 8 FY OD 62 C 9 sinGOo E Eqn Memory When a calculation result is an equation or inequality its formula number is displayed in the formula number area and the equation is stored in Eqn memory Stored equations can be recalled with the eqn command rclEqn command or rclAllEqn command 1Up to 99 formulas can be stored in Eqn memory The error message Memory ERROR when you try to store an equation when there are already 99 equations in Eqn memory When this happens execute the ALLEQU Delete All Equations from the CLR menu 19990401
14. ht the expression type you want to specify and then press x This displays a list of formulas for the expression type you select Move the cursor to the formula you want to use In the case of Linear Inequality press F4 TYPE to select the inequality type 19990401 7 3 2 Tutorial Mode The following shows the formulas available for each type of expression Linear Equation 6 Types AX B AX B C A BX C D EX F Linear Inequality 6 x 4 Types AX 2s B AX B zs C e A BX C gt lt 2S D EX F Quadratic Equation 5 Types e AX B e AX BX C 0 e AX BX C DX EX F Simul Equation 10 Types e AX BY C DX EY F e AX BY C 0 DX EY F 0 AX BY C Y DX E AX BY C DX EY x F2 GX HY I AX BY x CZ DX EY F Y GX H X A B AX B CX D AX B 2 C X A 2s B AX B Zs CX D AX B Zzs C AX B 2 C AX BX C D Y AX B Y CX D AX BY C DX EY F GX HY 1 JX KY4 L AX BY C DX EY F 0 AX BY C 0 Y DX E AX BY C 0 DX EY F2 GX HY I Pressing F6 EXCH reverses the left side and right side elements of the expression 19990401 7 3 3 Tutorial Mode E Defining the Expression In this step you specify coefficients and define the expression You can select any of the three following methods for specifying coefficients RAND random generation of coefficients INPUT key input
15. lways positive even when the integrals are discontinuous due to a switch between positive and negative fx L F x primitive function of f x fi fody F b F a 19990401 19990401
16. n nothing is specified for Exp 1 variable substitute sbstit Function Assigns an expression to a variable Syntax substitute Exp Eq Ineq variable expression variable expression eeee Example To assign 5 to X in 2X 1 F3 TRNS 9 sbstit 2 Kan 0 8 69 9 e cExpand cExpnd Function Expands xth root of imaginary number Syntax cExpand Exp e eeeee Example To expand V2i F1 TRNS a cExpnd GF x3 V 2 GHA 9 i 8 1 i 19990401 7 1 11 Using the CAS Computer Algebra System Mode approx Function Produces a numerical approximation for an expression Syntax approx Exp e eeeee Example To obtain a numerical value for V2 F2 TRNS fg approx se 3 V 2 1 414213562 E About approx Using approx affects the number of digits used to display a calculation result and the way calculations that include variables are performed in the CAS Mode With normal calculations when approx is not used in the CAS Mode calculation results are displayed in full without using exponents When you use approx in the CAS Mode however results are displayed using the exponential format range specified by the Display item of the SET UP screen This means approx displays results in the CAS Mode the same way they are displayed in the RUN MAT Mode eeee Example 920 Normal 9 A 2 0 12157665459056928801 approx F1J TRNS eg approx 9 A 2 0 E5 1 2
17. n the Algebra Mode e Function menu command input e Manual formula and parameter input E Menu Command Input Press a function menu key to display the menu of functions for the type of operation you are trying to perform TRNS formula transformation menu e CALC formula calculation menu EQUA equation inequality menu eqn calls up an equation stored in Equation Memory in accordance with a specified input value CLR variable formula delete menu For details on commands and their formats see the Algebra Command Reference on page 7 1 7 19990401 7 1 3 Using the CAS Computer Algebra System Mode ll Manual Formula and Parameter Input You can use the function menus key and key in combination to input formulas and parameters as described below F3 EQUA 1 INEQUA e 5V V zV sx inequality prm key e cc V Absy xly sign infinity absolute value factorial signum function e HYP hyperbolic inverse hyperbolic functions sinhy cosh tanhy sinh cosh tanh e ARS key YArPAXHHYBHX input of graph memory YV iry X OAY OX E Formula Memory The CAS Mode has 28 formula variables Variable names are the letters A through Z plus r and 0 CAS Mode formula variables are independent of standard value variables eeee Example To assign a formula that differentiates sin X at X cos X to variable A F2 CALC 1 di
18. nential function Syntax trigIoExp Exp eeeee Example To convert cos iX to an exponential function F1 TRNS 8 TRIG 3 trigToE cos uer 0 i KaD E5 e expToTrig expToT eX e X Function Converts an exponential function to a trigonometric or hyperbolic function Syntax expToTrig Exp eeee Example To convert e to a trigonometric function F1 TRNS S TRIG 4 expToT E In e CO sr 0 7 ke e e simplify smplfy Function Simplifies an expression Syntax simplify Exp Eq Ineq e eeeee Example To simplify 2X 3Y X 3 Y X 3Y 3 X EJ TRNS 6 smplfy 2 uj X C 8 um 2 Y O m EJ X GE 3 amp o um SY C un E X 2 3 uj 2 Y GE 3 2 um CE X e 19990401 cos X sin X i X 3Y 3 2Y 3 7 1 10 Using the CAS Computer Algebra System Mode combine combin Function Reduces a fraction Syntax combine Exp Eq Ineq e eeeee Example To reduce the fraction X 1 X 2 X X 3 F TRNS 7 combin D 03 GJ X3 5x2 7X 1 CO Kat CE 2 D GJ xe CO Kat CE 3 xS X 2 e collect collct Function Rearranges an expression focusing on a particular variable Syntax collect Exp Eq Ineq Exp 1 variable eeee Example To rearrange X2 AX BX focusing on the variable X F3 TRNS 8 collct aN A a A ies B Ka E X A B X X is the default whe
19. nsforms the equation to the format Y aX b and substitutes the other expression to Y The Addition Subtraction Method multiplies both sides of the expression by the same value to isolate the coefficient X or Y As with the Algebra Mode the screen is divided between an input area and a display area Each press of F6 NEXT advances to the next step F6 NEXT is not shown on the display when after the solution is obtained You can scroll back through the steps by pressing F1 BACK eeeee Example To solve 4X 8 in the Auto Mode Linear Equation AX B rclEancl INPUT 3 EXE pu AUTO NEXT F NEXT simElif zteant23 Hee E 1You can press F5 ADD SU at any time to See 7 1 6 for information about graph functions switch from Substitution Method to Addition Subtraction Method 19990401 7 4 1 Algebra System Precautions 7 4 Algebra System Precautions If an algebraic operation cannot be performed for some reason the original expression remains on the display It may take considerable time to perform an algebraic operation Failure of a result to appear immediately does not indicate malfunction of the computer Any expression can be displayed in various different formats Because of this you should not assume that an expression is wrong just because it does not appear as you expected This calculator performs integration calculations under the assumption that integrals are a
20. rrange arrang Function Arranges terms in sequence of their variables Syntax arrange Exp Eq Ineq eeeee Example To arrange 2X 3 5X 8Y in sequence of its variables F1 TRNS 9 arrang 2 uri G x 3 2 8 m GE X GE 8 m Y Ex 5X42X 4 8Y 43 e replace replac Function Replaces a variable with the expression assigned to the corresponding expression variable Syntax replace Exp Eq Ineq eeee Example To replace S in the expression 3X 2S when the expression 2X 1 is assigned to S E1 TRNS x47 replac 3 Kar GE 2 um x S e 3X 2 2X 1 19990401 7 2 2 Algebra Mode absExpand absExp Function Divides an expression that contains an absolute value into two expressions Syntax absExpand Eq Ineq eeeee Example To strip the absolute value from 2X 31 9 F3 EQUA 8 absExp or F1 Abs 2X 3 29 1 2 Ka 2 3 DJ en CI 9 3 or 2X 3 9 H 19990401 7 3 1 Tutorial Mode 7 3 Tutorial Mode On the Main Menu select the TUTOR icon to enter the Tutorial Mode E Tutorial Mode Flow 1 Specify the expression type 2 Define the expression 3 Specify the solve mode E Specifying the Expression Type Entering the Tutorial Mode displays a menu of the following expression types Linear Equation Linear Inequality Quadratic Equation Simul Simultaneous Equation Use the cursor keys to highlig
21. you input a solution for verification of whether or not it is correct It provides a good way to check solutions you arrive at manually MANU Manual Mode In this mode you manually input algebra commands transform the expression and calculate a result AUTO Auto Mode In this mode the solution is produced automatically one step at a time E Verify Mode Press F4 VRFY to enter the Verify Mode The expression is shown in the top line of the display Input the solution underneath it and then press F6 JUDG to determine whether the solution is correct The verification result screen shows the left side and right side verification result except for a linear equation However in the case where a linear equation or quadratic equation has two solutions the left side and right side are obtained for the value where the pointer is located n the case of simultaneous equations where the left side and right side of the second equation are dissimilar even though the left side and right side of the first equation match the left side and right side of the second equation only are obtained In other cases the left side and right side of the first equation are obtained The type of solution input screen that appears is selected according to the expression type To input a different type press F1 TYPE and then select the solution type you want to want to use Available solution types depend on the mode
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