HP 48g Graphing Calculator - Manual (Page 33)

typing aids (for example,
( S I N
) types
S I H <
)). Other commands are
executed immediately (for example, fSTol or fj^(PURGEl).
Program-Entry Mode. (Activated when you press f « » 1 or
and indicated by the PRG annunciator.) Program-entry
mode
i s
used
p r im a r i l y
for entering programs
a n d l i s t s .
It’s
a l s o
used for command-line editing
(SICMID)-
In Program-entry mode,
function keys and command keys act as typing aids (for example,
( s i n 1
types
S I N , a n
types STO). Only non-programmable
operations
a r e
executed
w h e n y o u
press
a
key
( f o r
example,
( E N T E R )
(^Afo), or r^(ENTRYl).
■ Algebraic/Program-Entry Mode. (Activated when you press
CD
while in Program-entry mode, and indicated by the FiLG and i-'F;G
annunciators.) Algebraic/Program-entry mode is used for keying
algebraic objects into programs.
To
change
entry modes manually:
■ Press
( T ^ f E N T R Y ) .
Pressing
( r ^ ( e n t r y " )
switches from Immediate-entry to Program-entry
mode, and between Program-entry and Algebraic/Program-entry
modes.
Immediate
entry
!r»i I ENTRY
Program
entry
ENTRY
Algebraic/Program
entry
ENTRY
( t ^ ( E N T R Y )
allows you to accumulate commands in the command
line for later execution. For example, you can manually invoke
Program-entry mode to enter 4 5 + T into the command line, and
then press
( E N T E R )
to calculate
c / 4
+
5 - f r ^ f E N T R Y )
also makes it
easier to edit algebraic objects in programs.
Example: Calculate 12 — log(lOO) by including the LOG command
in the command line.
Step 1: Enter the command line.
12
( S P C l
100
¡ r R ( E N T R Y " )
12 100 LOG 4
wanaiSimaiWHBitnaiiiBwianai
Entering and Editing Objects 2-9