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The

Solver

This

chapter

describes

how

to find a zero

and

minimum

the

ex-

pression you

plotted

the

previous chapter. Work

through

the

steps

the

chapter

if you

haven't

done

so already,

because

you'll

need

some

the

results from

that

chapter.

For a

complete

description

the

Solver, refer to "SOLVE" in

the

Ref-

erence Manual.

Finding a

Zero

Expression

The

following example

assumes

that

the

expression x

- X

+ 3

still

the

current

equation

and

that

you've

created

the

variable

PPARl,

as described in

the

previous chapter. You'll

plot

the

expres-

sion again, digitize

estimate

for a zero of

the

expression,

and

then

use

the

Solver to find a

accurate value for

the

zero.

Before

starting

these

examples, clear

the

stack, select

Radians

angle

mode,

and

select

FIX

number

display

mode

• 1 CLEAR

=3-:

-------------,1

~~~E

RAD~IiEII_tiBllmlma

Purge

the

existing PPAR to

ensure

that

the

next plot uses

the

default

plotting

parameters

• 1 PLOT

NEXT I 1

: I

l2J

PPAR

PURGE I

~lDBli1IIBtrnmll:DlI:mI

The

Solver

Brand

Model

HP-28S

HP HP-28S User Manual

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Brand	HP
Model	HP-28S
Category	Calculator
Language	English