Radio Shack EC-3031 owner manual Correcting Entry Errors

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65-754.fm Page 21 Friday, August 27, 1999 1:17 PM

CORRECTING ENTRY ERRORS

If you enter an incorrect value, press C once. Then enter the correct value and proceed with your calculation.

If you press an incorrect function key (+, –, ⋅, ⎟), simply press the correct key and continue.

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Contents EC-3031 Features Fm Page 3 Friday, August 27, 1999 117 PM FCC Wants YOU to Know Contents Choosing a Power Source Installing BatteriesPreparation Fm Page 7 Friday, August 27, 1999 117 PM Fm Page 8 Friday, August 27, 1999 117 PM Using AC Power Fm Page 10 Friday, August 27, 1999 117 PM Fm Page 11 Friday, August 27, 1999 117 PM Installing the Paper Roll Fm Page 13 Friday, August 27, 1999 117 PM Fm Page 14 Friday, August 27, 1999 117 PM Fm Page 15 Friday, August 27, 1999 117 PM Turning the EC-3031 ON/OFF OperationPrinting Printing a Displayed Value Rounding Fm Page 20 Friday, August 27, 1999 117 PM Correcting Entry Errors Estimating Calculation Results Correcting Calculation ErrorsBasic Calculations Calculation ExamplesConstant Calculations Fm Page 25 Friday, August 27, 1999 117 PM Memory Calculations To recall the value from memory, press MR Percentage Calculations 15% add-on to 25% decrease Markup Calculations Care Replacing the INK Roller Fm Page 33 Friday, August 27, 1999 117 PM Resetting Calculator Specifications Fm Page 36 Friday, August 27, 1999 117 PM Fm Page 37 Friday, August 27, 1999 117 PM Fm Page 38 Friday, August 27, 1999 117 PM Limited One-Year Warranty RadioShack Division Tandy Corporation Fort Worth, Texas