For example, if the display currently reads |3. 00| and you change the number of decimal places to 4, the display will read |3. 0000| once you exit from the decimal-changing process. No matter what you set the calculator to display, it always internally calculates numbers to 13 decimal places. In other words, the calculator may display |3. 00|, but it treats the number as 3. 0000000000000.
For example, the [5] button has a “%” label above it. If you want to activate the “%” second function (that is, turn the [5] button into the [%] button), press the [2nd] button immediately beforehand.
If the decimal place setting has already been changed before, the screen will display the current setting. For instance, if the calculator is currently set to show 3 decimal places, the screen will display |DEC = 3. 000|.
In the default 2-decimal format, the display will read |3. 50|. If set to zero decimal places, it will read |4. |. If set to 3 decimal places, it will read |3. 500|. If set to 8 decimal places, it will read |3. 50000000|. If set to the “floating decimal” format (by pressing [9]), it will read |3. 5|.
Zero places: |DEC = 0. | 1 place: |DEC = 1. 0| 2 places: |DEC = 2. 00| 3 places: |DEC = 3. 000| 4 places: |DEC = 4. 0000| 5 places: |DEC = 5. 00000| 6 places: |DEC = 6. 000000| 7 places: |DEC = 7. 0000000| 8 places: |DEC = 8. 00000000| Floating decimal: |DEC = 9. |
Press the [2nd] button, then the [+/-] button (its second function is “RESET”). Press the [ENTER] button to reset the calculator. This clears the calculator’s memory, deletes any worksheet data, and restores all default settings.