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HP 48gx User Manual

HP 48gx
116 pages
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Page #84 background image
Step
4:
Move
the
cursor
to
#
=
0.3,
and
draw
the
line
tangent
to
the
function
at
that
point.
(»)
(7
times)
(to
redisplay
the
menu)
f\
|
THHL
Tee
dT
TAMLIME:
'Y=-1.4015%#-3.58402"
Example:
Determine
the
point
where
the
current
function
has
a
local
maximum
in
the
region
near
the
y-axis.
Step
1:
Magnify
the
display
to
show
the
target
region
more
clearly.
Move
the
cursor
to
one
corner
of
the
target
region
and
use
Box
Zoom.
(A)
(3
times)
(€)
(6
times)
(to
redisplay
the
menu)
FICT
ZOOM
BOXZ
(¥)
(5
times)
(»)
(12
times)
ef
[|
[thNcL[200K)
Step
2:
Execute
the
zoom,
move
the
cursor
near
the
local
maximum
point,
and
find
an
extremum.
Sa
=
UL
(»)
or
(4)
as
needed
nu
EXTRM:
(159483706477
.-3.91091B8662!
Step
3:
Return
to
the
stack.
Notice
that
each
of
the
analytic
functions
put
a
labeled
result
onto
the
stack.
(CANCEL)
(several
times)
Jt
Slope:
BYE
i
Leh
ine:
'Y=—1.40A1..
6477.3...
6-16
Plottina
Eauations
and
Analvzing
Graphs

Table of Contents

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HP 48gx Specifications

General IconGeneral
ModelHP 48gx
TypeGraphing Calculator
Display TypeLCD
Display Size131x64 pixels
Memory128 KB RAM
Expandable MemoryYes, via expansion cards
Release Year1993
ProcessorSaturn
Programming LanguageRPL
Power Supply3x AAA batteries
Weight255 g (9 ounces)

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