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Please notice that
e
is available from the keyboard as
exp(1)
, i.e.,
„¸1`
, in ALG mode, or
1`
„¸
, in RPN mode. Also,
π
is available directly from the keyboard as
„ì
. Finally,
i
is available
by using
„¥
.
Operations with units
Numbers in the calculator can have units associated with them. Thus, it is
possible to calculate results involving a consistent system of units and produce
a result with the appropriate combination of units.
The UNITS menu
The units menu is launched by the keystroke combination
‚Û
(associated
with the
6
key). With system flag 117 set to
CHOOSE boxes
, the result is
the following menu:
Option
1. Tools..
contains functions used to operate on units (discussed later).
Options
3. Length..
through
17.Viscosity
.. contain menus with a number of
units for each of the quantities described. For example, selecting option
8.
Force..
shows the following units menu:
The user will recognize most of these units (some, e.g., dyne, are not used
very often nowadays) from his or her physics classes:
N
= newtons,
dyn
=
dynes,
gf
= grams – force (to distinguish from gram-mass, or plainly gram, a