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The
[3rd][(]
key sequence selects the Hexadecimal
mode and shows the HEX indicator on the display
(which is spoken out when the Special Functions
feature mode is active). In this mode, you can
perform arithmetic operations with hexadecimal
numbers (integers only).
When you press the key sequence above the integer
portion of the number, the display is automatically
converted to its hexadecimal equivalent and spoken
out. You can enter positive hexadecimal numbers as
large as 2540BE3FF (9 digits). Numbers beyond
this are interpreted as negative (two’s complement)
numbers. All keys that are not functional in this
mode sound a warning tone. To enter the
hexadecimal digits A through F, use the following
keys:
[1/x]
for
[A]
[X
2
]
for
[B]
[
√
x
]
for
[C]
[SIN]
for
[D]
[COS]
for
[E]
[TAN]
for
[F]
3.11 Probability
A
combination
is an arrangement of objects in
which order is not important, as in a hand of cards,
[nCr] calculates the number of possible
combinations of
n
items taken
r
at a time.
A
permutation
is an arrangement of objects in
which the order is important, as in a race. [nPr]
calculates the number of possible permutations of
n
items taken
r
at a time.
The
[x!]
([3rd][LOG])
key calculates the
factorial
of
the displayed value which must be an integer in the
range of 0 to 69.
3.12 Physical Constants
Physical constants can be entered using the
following key sequences:
c
[3rd] [CE/C] [SIN]
Speed of light
g
[3rd] [CE/C] [COS]
Gravitational acceleration
Me
[3rd] [CE/C] [TAN]
Electron mass
e
[3rd] [CE/C]
[y
x
]
Electron charge
h
[3rd] [CE/C] [1/x]
Planck’s constant
NA
[3rd] [CE/C] [X
2
]
Avogadro’s number
R
[3rd] [CE/C] [
√
x
]
Ideal gas constant
G
[3rd] [CE/C] [
÷
]
Universal gravitation
