Lesson 5: a brief tour of the hp 48, Entry environments, Creating equations: [fjj – HP 48G User Manual
Page 22: Entry environments -10
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Lesson 5: A Brief Tour of the HP 48
As
compact
and
powerful
as
the stack
is for
manipulating
objects,
there are many kinds of problem-solving
situations
which demand
s]3ecial working eiivironinents tailored to specific needs. This lesson
takes
you on
a.
short tour of
the
various user-friendly environments
that comprise the HP 48.
Entry Environments
You have already seen
the
main entry environment on the HP 48
—the
command line. However, among the mathematical objects handled by
the HP 48
are objects whose natural format
is
not well-suited to
the
command-line display.
Creating Equations: [fjJ
Samples:
Algebraic equations
and
expressions can be entered as
you are accustomed t.o seeing them using a special entry
environment, the
E q u a t i o n W r i te r .
The Equation Writer
is handy
for writing any equation in a familiar form
(see
lesson 6 for a worked example).
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2-10 Introducing the HP 48