T
T
h
h
e
e
‘
‘
C
C
o
o
n
n
s
s
t
t
a
a
n
n
t
t
’
’
g
g
r
r
o
o
u
u
p
p
o
o
f
f
f
f
u
u
n
n
c
c
t
t
i
i
o
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s
These ‘functions’ consist of a set of commonly occurring constants.
Two of them,
MAXREAL
and
MINREAL
are mainly of use to
programmers except for an important influence on the evaluation of
limits (see page 80). They consist, respectively, of the largest and
smallest numbers with which the calculator is capable of dealing, and
are there for use by programmers as a check to ensure that calculations
within a program have not overflowed the capacity of the calculator.
The other three,
π
,
i
, and
e
, are far more easily obtained via the keyboard.
The first,
π
, is available via a key on the face of the calculator above the 3 key. The other two ,
i
&
e
, are
easily obtained as lowercase letters via the
ALPHA
key, pressing
SHIFT
first to get lowercase.
T
T
h
h
e
e
‘
‘
C
C
o
o
n
n
v
v
e
e
r
r
t
t
’
’
g
g
r
r
o
o
u
u
p
p
o
o
f
f
f
f
u
u
n
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c
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s
s
This is a set of functions which allow conversion of metric units to imperial and vice versa. The list is not very
extensive but does cover the more common ones. The syntax is the same
for all.
For example, the
Æ
C
function converts to Celsius from the equivalent
Fahrenheit. To convert 212 degrees Fahrenheit to Celsius just type
Æ
C(212)
. To convert 100 kg to pounds, use
Æ
LBS(100)
as shown in
the screen shot.
The available functions are:
Æ
C
- converts Fahrenheit to Celsius
Æ
CM
- converts inches to centimeters
Æ
L
- converts litres to US gallons
Æ
KG
- converts pounds to kilograms
Æ
KM
- converts miles to kilometers
Æ
DEG
- converts radians into degrees
Æ
F
- converts Celsius to Fahrenheit
Æ
IN
- converts centimeters to inches
Æ
GAL
- converts US gallons to litres
Æ
LBS
- converts kilograms to pounds
Æ
MILE
- converts kilometers to miles
Æ
RAD
- converts degrees into radians
189