HP 48gII User Manual page 68

The soft menu keys corresponding to this CONSTANTS LIBRARY screen
include the following functions:
SI when selected, constants values are shown in SI units (*)
ENGL when selected, constants values are shown in English units (*)
UNIT when selected, constants are shown with units attached
VALUE when selected, constants are shown without units
STK copies value (with or without units) to the stack
QUIT exit constants library
(*) Activated only if the VALUE option is selected.
This is the way the top of the CONSTANTS LIBRARY screen looks when the
option VALUE is selected (units in the SI system):
To see the values of the constants in the English (or Imperial) system, press the
@E GL option:
If we de-select the UNITS option (press @U ITS ) only the values are shown
(English units selected in this case):
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