User manual SHARP EL-5230/5250

[. . . ] ® EL-5230 EL-5250 PROGRAMMABLE SCIENTIFIC CALCULATOR OPERATION MANUAL SHARP EL-5230/5250 Programmable Scientific Calculator Introduction Chapter 1: Before You Get Started Chapter 2: General Information Chapter 3: Scientific Calculations Chapter 4: Statistical Calculations Chapter 5: Equation Solvers Chapter 6: Complex Number Calculations Chapter 7: Programming Chapter 8: Application Examples Appendix 1 Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Operational Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Key Notation in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Chapter 1: Before You Get Started . . . . . . . . . . . . . . . . . . . . . 11 Preparing to Use the Calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Resetting the calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · You can use both global and local variables in your equation. TOE=(4©GM)R_ Equation entering display · Using the solver function will cause variables memory to be overwritten with new values. · To exit the solver function, press j. Changing the value of variables and editing an equation When you are in the solution display, press e to return to the display for entering values of variables, then return to the equation display in the NORMAL mode by pressing j. R= 1. 127251652 R¬ 9. L¬ 9. Solution display TOE=(4©GM)R e G=z NORMAL MODE 0. j TOE=(4©GM)R_ 1. 5 Use d u to move between variables. 52 Chapter 3: Scientific Calculations Solving an equation Example Try finding the variables in the equation below. Press b 0 to select the NORMAL mode. Press ; A k ; B ; = ; C k ; D. · The calculator automatically calls the A°B=C°D display for entering variables and displays the variables in alphabetical A=z 0. · If a variable already has a value, the calculator displays that value automatically. · Enters a value for known variable B. A°B=C°D B=z A°B=C°D C=z 0. · After showing the `calculating!' display, the calculator finds the value for the unknown variable that was indicated by the cursor. A°B=C°D D=z D= R¬ L¬ 0. 20. 50. Values of the left-hand side of the equation Values of the right-hand side of the equation 53 Chapter 3: Scientific Calculations · The value shown on the display for the unknown variable does not have to be set to 0 to solve the equation. · The answer is displayed on the top line and the values of the lefthand and right-hand sides of the equation appear below. · Returns you to the display for entering variables. A°B=C°D A=z A°B=C°D C=z C= R¬ L¬ 2. 5 4. · You can find any unknowns in the same equation. Important notes There are several important points to remember when you use the solver function. · To cancel calculation, press j when `calculating!' is displayed. · Before entering the equation, the appropriate angular unit must be selected. Due to this, there may be some equations that it fails to solve even though they are in fact solvable. (See page 123. ) · The calculator stops calculating when the values it has obtained for the left and right sides of the equation become very close. Thus in certain cases the solution it gives may not be the real answer. (See page 122. ) · In certain cases, the calculator may abort a calculation and display the message shown on the right. (See page - ERROR 02 121. ) CALCULATION 54 Chapter 3: Scientific Calculations Simulation Calculation (ALGB) This function enables you to find different solutions quickly using different sets of values in the same expression. Entering an expression for simulation calculation The simulation calculation is used as follows. The calculation result will be displayed after entering the value for all used variables. [. . . ] ---- < 10100 (n-r)! 0°0'0. 00001" | x | < 10000° x2 + y2 < 10100 0 r < 10100 DEG: | | < 1010 RAD: r, x, y 180 10 GRAD : | | < -- × 1010 9 2 | | < --­ × 1010 DRG (A+Bi)+(C+Di) (A+Bi)­(C+Di ) (A+Bi) ×(C+Di) DEGRAD, GRADDEG: | x | < 10100 RADGRAD: | x | < -- × 1098 | A + C | < 10100, | B + D | < 10100 | A ­ C | < 10100, | B ­ D | < 10100 (AC ­ BD) < 10100 (AD + BC) < 10100 AC + BD < 10100 C2 + D2 BC ­ AD < 10100 C2 + D2 2 2 C +D =0 / (A+Bi)÷(C+Di) 125 Appendix Function DEC BIN PEN OCT HEX AND OR XOR XNOR Dynamic range DEC : | x | 9999999999 BIN : 1000000000 x 1111111111 0 x 111111111 PEN : 2222222223 x 4444444444 0 x 2222222222 OCT : 4000000000 x 7777777777 0 x 3777777777 HEX : FDABF41C01 x FFFFFFFFFF 0 x 2540BE3FF : 1000000000 x 1111111111 0 x 111111111 PEN : 2222222223 x 4444444444 0 x 2222222221 OCT : 4000000000 x 7777777777 0 x 3777777777 HEX : FDABF41C01 x FFFFFFFFFF 0 x 2540BE3FE BIN : 1000000001 x 1111111111 0 x 111111111 PEN : 2222222223 x 4444444444 0 x 2222222222 OCT : 4000000001 x 7777777777 0 x 3777777777 HEX : FDABF41C01 x FFFFFFFFFF 0 x 2540BE3FF BIN NOT NEG * n, r: integer Memory usage The amounts of memory the calculator uses for variables, programs and equations are shown below. Variables Each variable uses 1 byte, and each local variable uses 9 bytes to store its value. Programs Creating a new program uses 32 bytes of memory irrespective of the length of its name. Each line in a program uses 3 bytes plus the number of characters or commands on the line (each character or command uses 1 byte). [. . . ]