Sharp EL-556G

The
solutions
for
x,
y,
and
z
are
given
by:
__d1(becs—b3c2)
—
b1(decs—d3c2)
+
c1(d2b3—-d3be)
_ aa
ha
|,
aa
Oa
aaa
me
a1(decs—dsc2)
—
di(a2cs—a3ce)
+
c1(a2ed3—a3d2)
=
rv
a1(beds—bad2)
—
bi(a2ds—asd2)
+
di(a2bs—a3be)
D
z=
Notes:
e
Ifthe
determinant
D
=0,
an
error
occurs.
e
lf
the
absolute
value
of
an
intermediate
result
or
calculation
result
is
1
x
10'°°
or
more, an error will occur.
Performing calculations
@ Press le}.
@
Enter
each
coefficient
followed
by
xt},
from
a;
to
ds
as
prompted
on
the
display.
@
Upon
pressing
ENT)
after
entering
d3,
the
solu-
tion
for
x
will
be
displayed.
Subsequent
pressing
will
cycie
through
the
values
of
x,
y,
z
and
the
determinant
D.
e Coefficients can be entered using ordinary arith-
metic
operations.
However,
calculations
such
as
2+3x4
requiring
values
to
be
held
cannot
be
performed.
¢
To
clear
entered
coefficients,
press
2ndF)
“CA
.
Likewise,
pressing
will
clear
the
coeffi-
cients.
Note:
Pressing
(Nt)
when
the
determinant
D
is
in
the
display
recalls
the
coefficients.
Each
time
is
pressed,
a
coefficient
is
dis-
played
in
the
same
order
as
the
input
se-
quence,
allowing
the
entered
coefficients
to
be
verified.
(By
pressing
[ndF)
[ENT]
,
coef-
ficients
are
displayed
in
reverse
order.)
To
correct
a
particular
coefficient
being
dis-
~20-