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Basic Features4
Changing the Calculation Mode
After viewing the default settings, suppose you want to change the calculation mode from
Chain to RPN. See Table 1-2.
Key Presses, the Shift Key, Secondary, and Tertiary Functions*
To execute the function associated with a key, press and release the desired key. However,
most of the calculators’ keys have more than one function: the first, or primary function, the
shifted, or secondary function, and, in some cases, a third, or tertiary function (see Figure 2).
* Tertiary functions do not apply to the HP 20b.
Actual or Cal.360 Calendar options for bonds and date calculations.
Default is Actual.
Pressing I toggles between these options.
Annual or Semiannual Bond type.
Default is Annual.
Pressing
I toggles between these options.
TVM Standard or TVM
Canada
Activate or deactivate the compounding per year (C/YR) option in time value of money
(TVM) calculations. This option is primarily used for Canadian mortgage calculations. See
Chapter 4, Canadian Mortgages: TVM Canada for more information.
Pressing
I toggles between these options.
Table 1-1 Mode Menu Settings
Setting (top line) Description
Table 1-2 Changing the Calculation Mode
Keys Display Description
:u
Opens the Mode menu, starting with first setting
option, FIX, the number of digits displayed to the
right of the decimal point.
<<<
<<
(Press five times)
Scrolls to the current setting for the calculation
mode, Chain.
II
(Press two times)
Selects RPN as the active setting. Note the RPN
annunciator to the right.
O
Exits the Mode menu and returns you to the
default calculator screen.
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