If you type a number into in your numerical base you will see the underneath the buttons will show what that number is in that numerical base.
Statistic Mode
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To enter Statistic mode :menuselection:`Settings --> Statistic Mode`. To enter multiple entries of data press the :guilabel:`Dat` button to enter data. To show how many pieces of data you have entered press the :guilabel:`N`. To view the mean or average of all the data press the :guilabel:`Mea` button. To view the median of the data press the :guilabel:`Med` button. To clear the statistical memory press the :guilabel:`CSt` button.