|
|
|
General Operating Instructions
|
|
|
Fundamental Operations
|
|
Operations common to a number of applications are defined in the
following paragraphs; they are described in depth in Appendixes A and B.
|
|
Entering Data
|
Numbers appear from left to right on the display in the order in which
they were pressed. Note that a decimal point is included with the number
entry keys; it must be entered if it is part of the number. For
example, $2.98 would be keyed as:  2 9 8.
|
|
|
Each
time a number is pressed it appears on the display. To signal that you
have completed entry of a number string, press the nonnumeral key
appropriate to your present calculation.
|
|
|
If you want to enter a very large number—say 1 trillion-press 1000000000000. The number is displayed as 1.000000000 12 . This represents 1 ×
10 raised to the 12th power—an example of scientific notation where
large numbers appear in an abbreviated form using an exponent of 10 in
the last two digits displayed.
|
|
Entering Negative Numbers
|
|
To enter a negative number, press CHS (change sign key)
after entering a positive number. The number will appear on the display
preceded by a minus (–) sign. To change the sign of a negative or
positive number on the display press CHS.
|
|
Rounding Numbers
|
|
A secondary function of all numeral keys is the rounding of displayed
numbers. Numbers may be rounded on the display to a maximum of six
decimal places by pressing the gold key before pressing the appropriate number key (0-6).
Rounding affects the display only; it does not affect the accuracy of
the number internally. Numbers may be displayed in scientific notation
by pressing and then pressing the 7, 8 or 9.
|
|
Loading Data
|
|
All calculations performed on more than one number require that numbers be loaded into appropriate memory locations.
|
|
Arithmetic and Basic Functions
|
|
When performing arithmetic and basic functions, the first number in each set of values is loaded by pressing SAVE after entering the num-
|
|
