<s>
Sharp	B-Device
EL-500W	I-Device
series	I-Device
include	O
a	O
range	O
of	O
scientific	O
calculators	O
made	O
by	O
Sharp	O
Corporation	O
,	O
capable	O
of	O
displaying	O
2	O
lines	O
,	O
with	O
multi-line	O
playback	O
.	O
</s>
<s>
Starting	O
with	O
the	O
W	O
series	O
,	O
this	O
product	O
line	O
supports	O
dual-line	O
displays	O
with	O
multiple	O
line	O
playback	O
,	O
constant	O
calculation	O
,	O
chain	O
calculation	O
,	O
similar	O
to	O
the	O
Casio	B-Device
fx-MS	I-Device
series	I-Device
,	O
TI-34	O
II	O
Explorer	O
Plus	O
.	O
</s>
<s>
EL-531WG	O
uses	O
two	O
LR44	B-Algorithm
batteries	I-Algorithm
and	O
solar	O
cells	O
.	O
</s>
<s>
EL-531WH	O
runs	O
on	O
one	O
AA	B-Algorithm
battery	I-Algorithm
instead	O
of	O
two	O
LR44	B-Algorithm
batteries	I-Algorithm
.	O
</s>
<s>
EL-520W	O
adds	O
52	O
physical	O
constants	O
,	O
44	O
unit	O
conversions	O
,	O
complex	O
number	O
calculation	O
,	O
2-3	O
variable	O
linear	O
equation	O
solver	O
,	O
quadratic	O
equation/cubic	O
function	O
equation	O
solver	O
,	O
Newton	O
generic	O
equation	O
solver	O
,	O
numeric	O
derivative/integral	O
functions	O
,	O
formula	O
memory	O
(	O
max	O
4	O
formulae	O
,	O
256	O
characters	O
total	O
)	O
,	O
algebraic	O
substitution	O
(	O
simulation	O
calculation	O
)	O
to	O
EL-509/531W	O
,	O
for	O
total	O
of	O
419	O
functions	O
.	O
</s>
<s>
It	O
is	O
powered	O
by	O
2	O
LR44	B-Algorithm
batteries	I-Algorithm
or	O
light	O
.	O
</s>
<s>
EL-506W	O
adds	O
matrix	B-Architecture
calculation	I-Architecture
,	O
list	O
calculation	O
(	O
max	O
4	O
lists	O
,	O
16	O
elements/list	O
)	O
to	O
EL-520W	O
,	O
for	O
total	O
of	O
469	O
functions	O
.	O
</s>
<s>
EL-500M	O
is	O
a	O
single	O
line	O
version	O
of	O
EL-509W	O
,	O
which	O
contains	O
only	O
the	O
dot	B-General_Concept
matrix	I-General_Concept
line	O
.	O
</s>
<s>
Dot	B-General_Concept
matrix	I-General_Concept
line	O
only	O
shows	O
11	O
characters	O
.	O
</s>
<s>
)	O
,	O
which	O
is	O
an	O
infix	O
input	O
system	O
used	O
by	O
Sharp	O
similar	O
to	O
Casio	O
's	O
V.P.A.M.	B-Device
</s>
<s>
It	O
only	O
supports	O
8-digit	O
mantissa	B-Algorithm
display	O
in	O
scientific	O
notation	O
mode	O
.	O
</s>
<s>
EL-735	O
displays	O
9-digit	O
mantissa	B-Algorithm
in	O
scientific	O
display	O
mode	O
.	O
</s>
<s>
It	O
is	O
powered	O
by	O
1	O
CR2016	B-Algorithm
battery	O
.	O
</s>
<s>
EL-733	O
is	O
a	O
scaled-down	O
version	O
that	O
does	O
not	O
have	O
the	O
dot	B-General_Concept
matrix	I-General_Concept
line	O
.	O
</s>
<s>
It	O
displays	O
8-digit	O
mantissa	B-Algorithm
in	O
scientific	O
display	O
mode	O
.	O
</s>
<s>
It	O
is	O
powered	O
by	O
2	O
LR44	B-Algorithm
batteries	I-Algorithm
.	O
</s>
