HP 49g+, Руководство пользователя

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Page B-4
The left-shift key
„
and the right-shift key
…
are combined with other
keys to activate menus, enter characters, or calculate functions as
described elsewhere.
The numerical keys ( 0 to 9 ) are used to enter the digits of the decimal
number system.
There is a decimal point key (.) and a space key ( SPC ).
The ENTER key is used to enter a number, expression, or function in the
display or stack, and
The ON key is used to turn the calculator on.
Alternate key functions
The green left-shift key, key (8,1) , the red right-shift key, key (9,1) , and the
blue ALPHA key, key (7,1) , can be combined with some of the other keys to
activate the alternative functions shown in the keyboard. For example, the
P
key, key(4,4) , has the following six functions associated with it:
P
Main function, to activate the SYMBolic menu
„´
Left-shift function, to activate the MTH (Math) menu
… N
Right-shift function, to activate the CATalog function
~p
ALPHA function, to enter the upper-case letter P
~„p
ALPHA-Left-Shift function, to enter the lower-case letter p
~…p
ALPHA-Right-Shift function, to enter the symbol P
Of the six functions associated with the key only the first four are shown in the
keyboard itself. This is the way that the key looks in the keyboard:
Notice that the color and the position of the labels in the key, namely, SYMB ,
MTH , CAT and P , indicate which is the main function ( SYMB ), and which of