Next
convert
10 cubic feet to gallons.
Clear
the
stack
and
enter
the
numerical value .
• 1 CLEAR 1
10 1 ENTER 1
Enter
the
unit
string for
Hcubic
feeV
~----------------------~
•
Ioil
ITQ]
ft
.rAl
3 1 ENTER I
8:
LJ
LJ
2:
10
1:
"ft
A
8"
IiiDlDIIlRDlmaDBDlID
Key in
the
unit
for
HUS
gallon"
and
convert.
~----------------------~
ITQ]
gal
.1
CONVERT I
8:
2:
74.8051948052
1:
'9al'
IiiDlDIIlRDlmaDBDlID
The result
shows
that
10 cubic feet converts to 74.8051948052
gallons.
Checking for
the
Correct
Units
Using incorrect units can
lead
to unexpected numerical results
or
to
an
I
ncons
i s t
en
t
Un
its
error. The solution in either case is to check
the
UNITS catalog
or
the
HUNITS
H
section
of
the
Reference Manual.
Unexpected numerical results
can
occur if you use a
unit
with
the
cor-
rect dimensions
but
an
incorrect numerical value. For example,
if
you
convert
one
acre to
Hft"Y
,
the
result is greater
than
43,560. This oc-
curs because there are two Hfoot
H
units, Hft" (international foot)
and
HftUS"
(survey foot).
Converting
one
acre to HftUS"2"
returns
exactly
43,560.
An
I
ncons
i s t
en
t
Un
its
error occurs
if
you use a
unit
with
in-
correct dimensions. For example, this occurs
if
you use
Hlb"
(pound) as
a
unit
of
force. The correct
unit
for force is
nlbf"
(pound-force).
146
14:
Unit
Conversion
I
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