Storing And Recalling Variables - HP 40G User Manual

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Storing and recalling variables

You can store numbers or expressions from a previous input
or result into variables.
Numeric
A number stored in a variable is always stored as a 12-digit
Precision mantissa with a 3-digit exponent. Numeric precision in the
display, however, depends on the display mode (Standard,
Fixed, Scientific, Engineering, or Fraction). A displayed
number has only the precision that is displayed. If you copy it
from the HOME view display history, you obtain only the
precision displayed, not the full internal precision. On the
other hand, the variable Ans always contains the most recent
result to full precision.
To store a value
1. On the command line,
enter the value or the
calculation for the result
you wish to store.
2. Press
3. Enter a name for the
variable.
4. Press
11-2
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Variables and memory management