 E-mail Webmaster _______________ Navigation Home ________________ Recent Additions ________________ English Section TI Graphing Calculators TI Program Descriptions Casio Graphing    Calculator Casio Program Descriptions Casio Programs CFX-9850 & CFX-9750 Brief  Guides CFX-9850 & CFX-9750 User Manual Statistics Guide Casio Programming Keystrokes ________________ Brief Guides Other Calculators HP 43S Calculator Scientific Calculators FAQs for Scientific Calculators =============== Sección Española FAQs en Español FAQs Basicos Mas Dificil Pagina 1 Mas Dificil Pagina 2 Guías en Espaňol TI-82 Espanol TI-82 Estidisticas TI-83 Plus Espanol TI-83 Plus Estidisticas TI-83 Plus Guía Financiera TI-89 Titanium Guía TI-89 Estidisticas TI-89 Guía Financiera   Casio Calculadoras Breve Guía Español Cfx-9850 & Cfx-9750 Casio FAQs en Espanol Calculadoras Científicos FAQs en Espanol ________________ Links Programs at Other Sites Links to Tutorials Brief User Guide FOR CASIO GRAPHING CALCULATORS Contents: This page contains detailed descriptions of how to do a large number of calculations.  These include basic operations such as roots, powers, trig functions, statistical operations, matrix operations, solving a system of equations, finding the value of the derivative, and finding the value of  a definite integral.  Copyright 2007 Composed: 3/1/07               Released:  3/3/07        Last Revised: 1/23/11 THIS PAGE IS FORMATTED FOR FULL-SCREEN VIEWING How to find an answer on this sheet: In order to make maintenance of this sheet easier, I designed it so that you can use your browser to find answers. After you've located the  number of the question that you want, just use the Find and enter the index number enclosed in parentheses.  The start point for the search should be below the listing in the index. APPLICABILITY:  This document was primarily written for the Casio CFX-9850GP Plus, but most of the descriptions except for programming should also apply to the CFX-9750 Plus. Index:   I.  BASICS:        1)  How to navigate around in the various modes of the calculator.        2)  Some basic modes explained.        3)  Isn't there a way to edit entries on the CFX-9850 the way my friends use ENTRY on the TI-83 Plus? II.  GRAPHING:      1)  How do I graph a function on the equation 3x2 + 2x -1 on the CFX-9850GB Plus?      2)  How do I set the window?      3)  How do I find some x-y values for a function to use in plotting the function by hand?        4)  My CFX-9850 won't scroll past certain numbers in a table.  How can I fix that?      5)  When I enter an equation with large coefficients, I often can't find the graph on my CFX-9850Plus.  How do I find it?        6)  How do I graph a piecewise function on a Casio CFX-9850GP Plus?      7)  How do I graph a circle on the CFX-9850Plus?      8)  How do I draw a circle on a graph?         9)  How do I graph and inequality on the CFX-9850+ and do the shading?      10) How do I set up the domain for a function on a CFX-9850Plus?       11) Is there a special operation for  graphing the  inverse of a function?       12)  Is there a more accurate way of obtaining the roots of a polynomial than using Trace?       13)  How can I solve for the intersection of two graphs? III.  MATRICES:         1)    How do I enter a matrix in the CGX-9850BGB Plus?        2)  How do I add two matrices?        3)  How do I multiply a matrix by a scalar?        4)  How do I multiply two  matrices?        5)   How do I find the determinant of a matrix.        6)   How do I find the inverse of a matrix.       7)  How do I do the rref and ref on a Casio CFX-9850GB Plus calculator as the other people in my class do on their TI-83?       8)  How do I find the inverse of a matrix on the Casio CFX-9850/Plus?       9)  How do I do matrix row operations with the CFX-9850Plus?      10)  How do I activate the program ROWREDA to do Gauss-Jordan? (CFX-9850G PLUS ONLY)      11)  Is there some way I can get a Gauss-Jordan solution to a matrix the way the TI-83 Plus does? IV.  EQUATIONS:       1)  Is there a way to solve quadratics on a CFX-9850Plus?        2)  How do I solve a system of equations on the TI-83Plus? V.  FINANCIAL CALCULATIONS:       1)  How do I do simple interest on a Casio CFX-9850G Plus?       2)  How do I do compound interest on a Casio CFX-9850G Plus?       3)  How do I do savings Accounts?       4)  How do I calculate the monthly payment on a mortgage? VI.  TRIGONOMETRY:         1)  How do I find what the angle whose cos is 0.5? VII.  CALCULUS:           (1)  How do I  find the derivative on my Casio CFX-9850GB Plus? VIII.  STATISTICS:           1)  How do I graph a linear regression on the CFX-9850+? IX.  MISCELLANEOUS:           1)  When I enter (-32)^(1/5); then (-2)^3 I get a correct answer, -8, but when I enter (-32)^(3/5) I get Ma    ERROR.  Why? X.  ELECTRONIC PROCEDURES:        1)  How do I transfer a program from one Casio CFX-9850 Plus to another? ANSWERS:  I.  BASICS:        1)  How to navigate around in the various modes of the calculator?              The Casio graphing calculators are menu driven calculators similar to a computer.  To do any type operations, you must first select the mode appropriate to that operation by pressing MENU, selecting the appropriate icon, and pressing EXE.  Submenus  are available either by default or by pressing the SHIFT key.  An item from the submenu is then selected by pressing the F-key (F1 through F6) that aligns vertically with the desired operation.  You may backstep through the menu levels by pressing EXIT or go directly to the highest level by pressing SHIFT, QUIT.          2)  Some basic modes explained.                The icon  for normal arithmetic, roots, powers, and trigonometry functions is RUN.  Most of the other icons are obvious.   Possible  excepts may be  that to do a table of values for a function, you must use the TABLE icon;  to do financial functions use the TVM, and to do a system of equations (similar to Matrix rref on the TI-83 Plus) you must use the EQUA icon.           3)  Isn't there a way to edit entries on the CFX-9850 the way my friends use ENTRY on the TI-83 Plus?      As a matter of fact, yes.  Although it's not quite like  the TI-83 Plus.  Let's say you've entered several calculations and you want to edit the last one.  Press the left cursor if want to start editing at the end of the expression or the right cursor if you want to start at the beginning.        Now, suppose you have entered three expressions, and you want to go back and edit the first one.          a)  Press AC.  All of the expressions are cleared from the screen, but don't panic.  They are all stored in memory.         b)  Press the up arrow and the expressions and will appear in inverse  sequence as the up-arrow is pressed               sequentially. ==================== II.  GRAPHING:      1)  How do I graph an equation of the form 3x2 + 2x -1?            a)  With the calculator on, press MENU,  select the GRAPH icon using the arrow keys and press EXE.  The Y= menu will                   then be displayed.            b)  Press 3; then the X,0,T key to enter x; the the x2 key; +, the 2 key; the X,0,T key again; the subtract key (not the minus);                   and finally the 1 key.  Press EXE to store the equation.            c)  Now press F6, the F-key corresponding to  DRAW, to graph the function.        2)  How do I set the window?             Since most people at our school will be using the TI-83 Plus or TI-84 Plus,  so I'm going to suggest that you set up the              window that is listed as "Standard" on the TI.              a)  When in the draw graph or equation entry submenu of the calculator, press SHIFT, V-Window.  Set X-min at -10, X-                    max at 10 and Y-min and max at -10 and 10 respectively.  Set both scales at 1.               b)  Press EXIT to go back to the screen you were at before you started setting the window.        3)  How do I find some x-y values for a function to use in plotting the function by hand?               a)  You must press MENU, select the TABLE icon, and press EXE.  The display will look like the equation entry screen                    except that TABL will have replaced DRAW.              b)  If you haven't already entered the equation, enter the equation as explained above and press the F6 key for TABL.  A                    table of x and y values will be displayed.   If you want more values, see the next explanation.         4)  My CFX-9850 won't scroll past certain numbers in a table.  How can I fix that?             Students often notice this when they're working with someone who has a TI-83 Plus, which will scroll past the limits set              in the table.  The CFX-9850 won't do that.  One way to compensate for that is to set the RANGE very wide, say -15 and             15 and just leave it there.  To do that, just press F5 for RANG when you're in the table Y= mode; then enter -15 for Start             and 15 for End.  When you're in the graphing mode, you might find it convenient to just use the TRACE function.  Do             that as follows:        a)  Press SHIFT, ZOOM and press F6 if INTG is not displayed.          b)  Press F4 (INTEG); then press SHIFT, F1(TRACE), and you can use the cursor to scroll through different x-values.        5)  When I enter an equation with large coefficients, I often can't find the graph on my Casio CFX-9850Plus.  How do I                 find it?            Press SHIFT, ZOOM, F5 (AUTO)       6)  How do I graph a piecewise function on a Casio CFX-9850BG Plus?           Doing this on the Casio is very straightforward.          Let's say we have this piecewise function to graph:          3x-2 { -5