VI. Hewlett Packard (HP) 10BII
The HP10BII is programmed to perform two basic types of operations: statistical operations and
financial operations. Various types of computations are activated by depressing the mauve or orange
“shift” keys located in the leftmost column of keys on the keypad. The mauve colored shift key
activates mainly statistical functions and operations indicated in mauve written above some of the
keys on the keypad. The orange colored shift key activates mainly financial functions and operations
indicated on the bottom half of most of the keys on the keypad.
The HP 10BII has continuous memory. Therefore, turning of the calculator does not affect the
information you have previously stored in the calculator. If not turned off manually, the calculator will
turn off automatically approximately 10 minutes after last use. The HP 10BII uses two lithium
batteries and has a low battery indicator symbol which is activated when battery power is low
indicating the need to replace them.
It is worth noting that the cursor ( _ ) is visible when you are entering a number and that using the
back key (?) will erase the last digit entered and visible on the display. When the cursor ( _ ) is not
visible, then pressing the back key (?) will clear the entire display and cancel any pending
calculation. When you are entering a number, pressing (C) also clears it to zero.
This guide uses the notation OS to indicate the selection of the orange shift key.
A. Turning the calculator on and off, clearing the display, clearing error messages, clearing
memory, and setting the decimal points:
Keystrokes Display Description
1. ON 0.00 Turns the calculator on.
2. OS
1
ON Turns the calculator off.
3. C Clears the display of its
current contents and cancels
the current calculation.
4. ? or C Clears any error message and
restores the original contents
of the display.
5. OS C All 0.00 Clears all memory. Does not
reset modes.
2
1
The keystroke symbol OS indicates the need to depress the orange shift key located in the left column of the keypad at the third
position from the bottom.
2
Modes on the HP 10 BII include (a) the number of payments assumed to occur each year, (b) whether payments occur at the
beginning or the end of the year, and (c) and the number of decimals displayed.
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