HP 38g Graphing Calculator - Manual (Page 42)

Clearing the
Display
History
Clearing the
Edit Line
It's a good habit to clear the display history (■ [CLEAR])
whenever you are done working in Home.
It saves calculator memory to clear the display history.
Remember that all your previous inputs and results are saved
until you clear them.
* [ DEL I deletes single characters in the edit line.
(CANCEL) clears the entire edit line.
Storing in Variables
Numeric
Precision
To store a
value
You can store numbers or expressions from any previous
input or result into variables.
A number stored in a variable is always stored as a 12-digit
mantissa with a 3-digit exponent. Numeric precision in the
display, however, depends on the display mode (Standard,
Fbced, Scientific, Engineering, or Fraction). A displayed
number has only the precision that is displayed.
Press {{STO>}} I letter I ENTER I , where letter represents the
one-letter variable name for real numbers.
6 {{STO^}} [ a I z ] B
ENTER
BHai
You can store the last answer the same way:
13 Q 5 I ENTER I
{{STO^}} A fENTE^
la-'S
Hnsfrfl
2.6
2 . 6
mil
To store any
previous value
To recall a
value
If the value you want to store is somewhere else in the Home
history, first copy it to the edit line: highlight the line (using
arrow keys) and press {{COPY}}. Then store it.
Type the name of the variable and press | enter ].
|A...Z|A I ENTER I 2.6
2-6 Mathematical Calculations