HP 49g Graphing Calculator - Manual (Page 46)

Modes
A mode is a way in which the HP 49G behaves. There are numerous
modes. For example, one mode is the way that numbers are displayed
(with a fixed number of decimal places, in scientific notation, and so on).
Another mode controls the imits in which angular measurements are
interpreted: degrees, radians, or gradians.
Changing a mode
Each mode has a default setting. To change a setting:
1. Press
The Calculator Modes input form is
displayed. Tliis input fonn enables you to
change the settings of those modes that
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are most likely to need changing. It also
gives you access to input forms for
changing display modes and CAS modes.
The modes that can be changed are discussed in the next three
sections.
2. Change the setting of a mode.
See “Input fonns” on page 2-14 for infomration on changing the values
in fields on input fonns.
3. Press
OK.
Calculator Modes
The calculator modes are:
® Operating mode:
controls how the HP 49G interprets and displays
calculations. (See “Algebraic and RPN modes” on page 2-21.)
® Number format:
controls how numbers are displayed and the number
of decimal places displayed. (See “Number displays” on page 2-9.)
® Angle measure:
controls the units in which angular measurements
are interpreted: degrees, radians, or gradians.
® Coordinate system:
controls how complex numbers and vectors are
displayed. (See chapter 8 for more information.)
® Beep:
a check field that enables you to turn on or turn off the system
beep.
Page 2-18 Basic operation