HP 20B - Manual (Page 50)

Date Calculation
50
Table 6-1 Date Calculation Example
Key Display Description
<10.3
12010
I Inputs the ending date in the selected format.
<= Calculates the number of actual days between the
starting and ending dates.
To reset the menu items to their default values, with any item of the Date menu displayed press
:x
. With Date
displayed, press
I
to reset the menu, or
O
to cancel. Press
O
again to exit the menu.