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Trace Printing
Tiace
printing
produces
a record
of all
the keys you've
pressed and
the
calculated results. To
switch trace printing on and off:
I
.
Press
l[
pR
tr.trER
I
.
2.Pressffiffitochan8ethesetting.AmessageinformSyouthat
tracing
is on or off.
If
necessary,
press
ffiffi
again
to
display
the
desired
message.
3.
Press
fEml.
You
should
turn
tracing
off
when you
are
not using it,
since
transmit-
ting
data
uses
calculator
battery power
and slows calculator operation.
Erample: Trace Printing an Arithmetic Galculation.
Produce
a
record
of
the
keystrokes
you
use
to do the followirg
calculation
and
store
the result
in
the %CHG
variable
OLD.
Vrzx4,800+1,25
Keys:
It
pR
tNrERl
f
*
tffit
l./"crdt
12aT*f
E
4800
E
125
tbLD-l
It
PR
rNrER-l
trffi
tEXlTt
Printed Record:
EX
I
T
KCHG
12,BBBB
1rH
E
,
BS33 ***
X
4,
BBB
,
EEBB
+
1E5,
EEBB
OLD
5E5,
BBEB ***
PR
I
HTER
TRRCE
*
If
the
HP-275 displays
PR
I
HT
I'|ODE
:
152
8: Printing
TRHCE
OFF,
press
ffffi
again.
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