HP -28S Manual page 143

You can move to the first unit that begins with a particular letter by
pressing that letter key.
[[)
The entry for "second" shows that the correct abbreviation is "s" and
the value is 1 second. "Second" is defined in terms of itself because it
is a fundamental unit.
Be sure to use the abbreviations exactly as they appear in the UNITS
catalog. For example, the HP-28S recognizes lower-case "s" as sec-
onds, but not upper-case "S".
Next check the entry for "day."
[[]
I~
I
CImmD _ _ IDmE!mD
This entry shows that the correct abbreviation is "d" and the value is
86,400 seconds.
Next look for the "foot" unit.
~
1¥1a:@
W .. 2*s . . . . . 4/k g*m ..... 2
CImmD _ _ IDmE!mD
The catalog shows the entry for "farad." Move forward seven entries.
NEXT NEXT NEXT NEXT
I"
mMKI!T!Ij
1
:3048
NEXT NEXT NEXT
m
CImmD _ _ IDmE!mD
The catalog shows the entry for "international foot." There are two
versions of "foot" in the catalog; the next unit is "survey foot."
You can write the abbreviation for "international foot" to the com-
mand line.
FETCH
142 14: Unit Conversion