Sharp EL-733 EL-733A Operation Manual - Page 16

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You can use the numbers stored in these registers just like you have used the numbers stored in the M register (explained starting on page 14) in your calculations, except no register arithmetic key like the ri key is available. MATH CTI•N 12 Seven math functions are available on the EL-733A and the use of these functions is fairly straightforward. These seven functions are available in all three calculating modes. All of the functions except for E operate instantaneously on the number showing in the display. With E , you need to key in one number (y), press E , key in another number (x), and press S . Some examples of using these math functions follow. To get the exact results that we show, your calculator must be in NORMAL mode with the display set to RR P3 W . Example: Calculate 1/9, 1/7, and 1/12. Solution: 9 Q 7 gi 12 M Result: 0.11 Result: 0.14 Result: 0.08 Example: What is the square root of 289? Solution: 289 Result: 17.00 Example: What is 25 (two to the fifth power)? Solution: 2 E 5 E Result: 32.00 Example: What is the cube root of 755? Solution: The key to solving this type of problem (a root other than the square root) is to know that the nth root of a number is equal to that number raised to the 1/n power. In this case, you need to raise 755 to the 1/3 power in order to calculate the cube (or third) root. 755 (J 3 Eg 0 Result 9.11 To verify this result, you can raise it back to the third power by pressing E 3 E This will give you 755.00. Example: What is 2752 (275 squared)? Solution: 275 [2ndF1[2) Result: 76625.00 Example: What is 6! (six factorial =1x2x3x4x5x 6) Solution: 6 Pull E Result: 720.00 Example: What is e0.226? Solution: 0.226 I2ndl Result: 1.25 Example: What is the natural log of 422? Solution: 422 PncIF] E Result: 6.05

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You
can
use
the
numbers
stored
in
these
registers
just
like
you
have
used
the
numbers
stored
in
the
M
register
(explained
starting
on
page
14)
in
your
calculations,
except
no
register
arithmetic
key
like
the
ri
key
is
available.
MATH
CTI•N
1
2
Seven
math
functions
are
available
on
the
EL
-733A
and
the
use
of
these
functions
is
fairly
straightforward.
These
seven
functions
are
available
in
all
three
calculating
modes.
All
of
the
functions
except
for
E
operate
instantaneously
on
the
number
showing
in
the
display.
With
E
,
you
need
to
key
in
one
number
(y),
press
E
,
key
in
another
number
(x),
and
press
S
.
Some
examples
of
using
these
math
functions
follow.
To
get
the
exact
results
that
we
show,
your
calculator
must
be
in
NORMAL
mode
with
the
display
set
to
RR
P3
W
.
Example:
Calculate
1/9,
1/7,
and
1/12.
Solution:
9
Q
Result:
0.11
7
gi
Result:
0.14
12
M
Result:
0.08
Example:
What
is
the
square
root
of
289?
Solution:
289
Result:
17.00
Example:
What
is
2
5
(two
to
the
fi
fth
power)?
Solution:
2
E
5
E
Result:
32.00
Example:
What
is
the
cube
root
of
755?
Solution:
The
key
to
solving
this
type
of
problem
(a
root
other
than
the
square
root)
is
to
know
that
the
nth
root
of
a
number
is
equal
to
that
number
raised
to
the
1/n
power.
In
this
case,
you
need
to
raise
755
to
the
1/3
power
in
order
to
calculate
the
cube
(or
third)
root.
755
(J
3
Eg
0
Result
9.11
To
verify
this
result,
you
can
raise
it
back
to
the
third
power
by
pressing
E
3
E
This
will
give
you
755.00.
Example:
What
is
275
2
(275
squared)?
Solution:
275
[2ndF1[2)
Result:
76625.00
Example:
What
is
6!
(six
factorial
=1x2x3x4x5x
6)
Solution:
6
Pull
E
Result:
720.00
Example:
What
is
e0.226?
Solution:
0.226
I2ndl
Result:
1.25
Example:
What
is
the
natural
log
of
422?
Solution:
422
PncIF]
E
Result:
6.05