Instruction manual
Solve
the
quadratic
equation
6x'
+7x + 2
=<
0
El<.l
<D
I
I
Kev
operation
Display
Note
"eo"
III
o.
6m
6.
Entrv of a
7m
7.
Entry
of
b
2m
2.
Entry
of c
em
~.5
Root
(QlI
[fJ@)
-6.666666667
~1
Root
(pi
2m
2.
Entry
of
a
3~rn
-3.
Entry
of
b
4
IT]
4:
Entrv
of
c
(ill
"
0.75
Root
(cr)
real
number
portion
"
CD@]
"
1.19895788
Root
(/3)
imaginary
number
portion
-b
2a
Imaginarv
root
.)
"
·1
"
-/4ac
-
b'
2a
Rea'
root
-b+v"b~
2a
-b-v'b~
2a
Performs
the
equation
and
displavs
the
root
ll!.
The0kev
must
be
depressed
after
the
entry
of
the
value
a,
band
c.
Note:
In case
of
imaginary
root,
on
IV reat
number
portion
is displaved.
~
~
21
CalCUlation
method
il
Enter the value
of
a,
band
c in this
order.
ii) Depress
the~andmGP.Jkeys
in this
orders,
the
following answers are
obtained;
Note: • "
shows
imaginary
root.
CD@)
m~
If
depressed
fa
Hawing
theCDkev,
displays
the
root
of
fJ
Note:
In
case
of
imaginary
root,
onlv
imaginary
number
portion
is
displaved.
67
68
Ex.
• When
you
want
to
correct
any
number
entered,
just
enter
the
right numbers.
Note:
The
number
of
a,
band
c
must
be
entered
in this orders.
31
Interrupt
calculation
The
interruption
by
scientific calculations is possible
during
the
entry
or
after
depressing
theG!Jand/orm~kevs.
And
the
calculated
result of
the
interrupt
calculation
can
be
used as
the
data
for a.
band
c in
the
quedratic
equation.
log
1000
(log
x)'
+ 5 logx - log
100
=<
0
logx ..
y
log
1000
xy'
+ Sy
-log
100
~
0
log
x .. y
:.
x ..
loY
-
__
-..J-_....--~
~
-
Key
operation
Display
Note
"EO"
m
O.
looomi:!W
3.
Interruption
m
3.
Entry
of
a (log
1000)
Sm
5.
Entry
of b
loo[DOill
2.
Interruption
L!EJw
-2.
Entry
of
c
(-log
100)
eill
3.333333333
-01
y (logxl
w5@
2.154434689
x
weill
-2.
y (log xl
wl1@
0.01
x
69
70