Appendix Appendix A Resetting the Calculator Appendix B Power Supply Appendix C Error Message Table Appendix D Input Ranges Appendix E Specifications
Appendix A Resetting the Calculator Warning! The procedure described here clears all memory contents. Never perform this operation unless you want to totally clear the memory of the calculator. If you need the data currently stored in memory, be sure to write it down somewhere before performing the RESET operation. u To reset the calculator F 1. Highlight the SYS icon on the main menu and then press w, or press t. 2. Use c to move the highlighting down to “Reset” and then press w. 1 2 3 4 5 6 3.
Resetting the Calculator • If the calculator stops operating correctly for some reason, use a thin, pointed object to press the P button on the back of the calculator. This should make the RESET screen appear on the display. Perform the procedure to complete the RESET operation. Appendix A P button P • Pressing the P button while an internal calculation is being performed will cause all data in memory to be deleted.
Appendix B Power Supply This unit is powered by four AAA-size (LR03 (AM4) or R03 (UM-4)) batteries. In addition, it uses a single CR2032 lithium battery as a back up power supply for the memory. If the following message appears on the display, immediately stop using the calculator and replace batteries. If you try to continue using the calculator, it will automatically turn power off, in order to protect memory contents. You will not be able to turn power back on until you replace batteries.
Power Supply Appendix B Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately. uTo replace the main power supply batteries * Never remove the main power supply and the memory back up batteries from the unit at the same time. * Never turn the calculator on while the main power supply batteries are removed from the calculator or not loaded correctly. Doing so can cause memory data to be deleted and malfunction of the calculator.
Appendix B Power Supply • Power supplied by memory back up battery while the main power supply batteries are removed for replacement retains memory contents. • Do not leave the unit without main power supply batteries loaded for long periods. Doing so can cause deletion of data stored in memory. • If the figures on the display appear too light and hard to see after you turn on power, adjust the tint.
Power Supply Appendix B 6. Wipe off the surfaces of a new battery with a soft, dry cloth. Load it into the calculator so that its positive (+) side is facing up. P MAIN BACK UP 7. Install the memory protection battery cover onto the calculator and secure it in place with the screw. Next, replace the back cover. 8. Turn the calculator front side up and slide off its case. Next, press o to turn on power.
Appendix C Error Message Table Syn ERROR 1 Calculation formula contains an error. 2 Formula in a program contains an error. Ma ERROR Go ERROR 1 Use d or e to display the point where the error was generated and correct it. 2 Use d or e to display the point where the error was generated and then correct the program. 1 Calculation result exceeds calculation range. 2 Calculation is outside the input range of a function. 3 Illogical operation (division by zero, etc.
Error Message Table Message Stk ERROR Countermeasure Meaning • Execution of calculations that exceed the capacity of the stack for numeric values or stack for commands. • • Mem ERROR • • • • • • • • • Appendix C Not enough memory to input a function into function memory. Not enough memory to create a matrix using the specified dimension. Not enough memory to hold matrix calculation result. Not enough memory to store data in list function. Not enough memory to input coefficient for equation.
Appendix C Error Message Table Message Countermeasure Meaning Undefined • No solution exists for the operation being performed in the ALGBR Mode. • Change the input expression. Overflow ERROR • The result of the operation being performed in the ALGBR Mode exceeds the range of the calculator. • Change the input expression. Domain ERROR • An input value in the ALGBR Mode is outside the domain of the operation being performed. • Change the input expression.
Appendix D Function sinx cosx tanx Input Ranges Input ranges (DEG) |x| < 9 × (109)° (RAD) |x| < 5 × 107 πrad (GRA) |x| < 1 × 1010 grad sin –1x cos–1x |x| < 1 tan –1x |x| < 1 × 10 100 sinhx coshx |x| < 230.2585092 tanhx |x| < 1 ×10100 sinh–1 x |x| < 5 × 10 99 cosh–1 x 1< x < 5 × 1099 tanh–1 x |x| < 1 logx Inx 1 × 10–99 < x < 1 × 10100 10x –1 × 10100 < x < 100 ex x –1 × 10100 < x < 230.
Appendix D Input Ranges Internal digits Accuracy 15 digits As a rule, accuracy is ±1 at the 10th digit.
Input Ranges Function Binary, octal, decimal, hexadecimal calculation Appendix D Input ranges Values fall within following ranges after conversion: DEC: –2147483648 < x < 2147483647 BIN: 1000000000000000 < x < 1111111111111111 (negative) 0 < x < 0111111111111111 (0, positive) OCT: 20000000000 < x < 37777777777 (negative) 0 < x < 17777777777 (0, positive) HEX: 80000000 < x < FFFFFFFF (negative) 0 < x < 7FFFFFFF (0, positive) * Errors may be cumulative with internal continuous calculations such as ^ (xy),
Appendix E Specifications Model: CFX-9970G Variables: 28 Calculation range: ±1 × 10–99 to ±9.999999999 × 10 99 and 0. Internal operations use 15-digit mantissa (except in ALGBR Mode). Exponential display range: (except in ALGBR Mode) Norm 1: 10–2 > | x|, |x| > 1010 Norm 2: 10–9 > |x|, |x| > 10 10 Program capacity: 60 kbytes (max.) Power supply: Main: Four AAA-size batteries (LR03 (AM4) or R03 (UM-4)) Back-up: One CR2032 lithium battery Power consumption: 0.
Specifications Appendix E Data Communications Functions: Program contents and file names; function memory data; matrix memory data; list data; variable data; Table & Graph data; graph functions; equation calculation coefficients Method: Start-stop (asynchronous), half-duplex Transmission speed (BPS): 9600 bits/second Parity: none Bit length: 8 bits Stop bit: Send: 3 bits Receive: 2 bits X ON/X OFF Control: None 457
