Casio CFX-9850G PLUS - Before Trying to Draw a Graph; Entering the Graph Mode

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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.
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uTo reset the calculator
F
1. Highlight the MEM 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.
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3. Press 1 (YES) to reset the calculator or 6 (NO) to abort the operation
without resetting anything.
4. Press m.
P. 11 • If the display appears to dark or dim after you reset the calculator, adjust the
contrast.