General Operations
Powe r Supply
On or Off
To turn the calculator on, press [ON/C].
To turn the calculator off, press [2ndF] [O FF].
Auto power- off fu nction
The calculator automatically turns off if it has not been used for
approxim ately 9 minutes. Pow er can be restor ed by pressing the
[ON/C] key again. Mem ory contents and the c urrent m ode setting
(STAT, DEG, CP LX, Base-n,etc ) are reta ined w hen you turn off the
power and w hen the calculator aut om atically turns off.
Battery replacemen t
The calculator is powered by tw o alkaline butt on batter ies (GP76A or
LR44). If the d isplay becom es dim and difficult to read, the batter ies
should be rep laced as soon as poss ible.
To replace the batte ries:
1. Slide the battery cove r off and rem ove the old batteries.
2. Insert new batte ries, with positiv e polarity fac ing outward.
3. Replace the battery cover and p ress [ON/C] to turn on the power.
The ke yboar d
Most of the keys can perf orm two functio ns.
2nd function
― ― ― ― ― ―
sin
–1
1st function
― ― ―
sin
1st function s
These are functions tha t are ex ecuted when you press a key withou t
first pressing [ 2nd F ]. The funct ion perform ed is indicated by t he label
on the key.
2nd fu nction s
These are functions tha t are ex ecuted when you press a key after f irst
pressing [ 2ndF ]. The function per form ed is indicated by th e label
above the key.
When you press [ 2ndF ], the 2ndF indicator appears in the display to
indicate that you w ill be selecting the second f unction of the nex t key
you press. If you press [ 2 ndF ] by m istake, sim ply press [ 2ndF ]
again to rem ove the 2ndF indi ca tor .
Note: [ A ], [ B ], [ C ], [ D ], [ E ], [ F ] a re 1st f unctions in HEX m ode.
Displa y Sym bols
The following sym bols, shown on the d isplay, indicat e the status of
the calculator.
DEG or RAD or GRAD: degrees, rad ians or grads ang ular uni t
M A valu e is in m em or y CPLX Complex number mode
E Overflow or err or STAT Stati stical mode
– Minus 2ndF [2ndF] key pressed
( ) Parentheses c alcu lation CP Precision capability
BIN Binary m ode CPK P rocess capab ility
OCT Octal mode σ Dev ia tion
HEX H exadecim al m ode USL Setting upper li mit
ED E dit mode LSL Setting low e r lim it
HYP H yperbolic m ode
Displ ay Fo rmats
The calculator can d isplay numbers in four form ats: floating point,
fix ed p o int, sc ie nt if ic, and en gin e er ing.
Floating p oint form at
The floating po int form at displays num bers in decimal form , using up
to 10 digits. Any tra iling zeros are tr uncated.
If the resu lt of a calculat ion is too large to b e represent ed by 10 d igits,
the display autom atically switches to scient ific form at. If the result of a
later calculation is small enough to be disp layed in less than 10 digits,
the calculator ret urns to f loating point form at.
To set the display to f loating point display for m at:
1. Press [ 2ndF ] [ FIX ] [
•
]
DEG
0.
Fixed poin t format
The fixed point, sc ientific, and engineering f orm ats use a fixed
number of decim al places to disp lay numbers. If m ore than the
specified num ber of decim al places is keyed, t he entry wil l be rounded
to the correct num ber of dec imal places.
Ex. 1: Fix the dis play at 2 dec imal places, then key in 3.25 6
1. Press [ 2ndF ] [ FIX ] 2
DEG
0 . 0 0
2. Key in 3.256 [
ENTER
]
DEG
3 . 2 6
If fewer than the set number of dec imal places is keyed, the entry w ill
be padded w ith trailing zeros.
Ex. 2: Fix the displ ay at 4 dec imal places, then key in 4.23
1. Press [ 2ndF ] [ FIX ] 4
DEG
0.0000
2. Key in 4.23 [
ENTER
]
DEG
4.2300
Scientific for mat
In scientific form at, the num ber 891500 is shown as 8.915 × 10
05
,
where 8.915 is the m antissa and 5 is the expo nent of 10.
Ex. 3: To display 7132 × 1 25 in scientific format:
1. Key in 7132 [ × ] 125 [
ENTER
]
DEG
891500.
2. Press [ F
← →
E ]
DEG
8.915
05
You can convert an entr y to scien tific n otation by p ressin g [EXP] afte r
entering the mantissa.
Ex. 4: K ey the number 4.82296 × 10
5
1. Key in 4.82296 [ EXP ] 5
DEG
4.82296
05
Engin eer ing for mat
Engineering form at is s imilar to scient ific format, ex cept that the
mantissa can have up to th ree digi ts to the left of the decim al and the
exponent is always a m ultip le of three. This is useful if you have to
convert units that are based on m ultiples of 10
3
.
Ex. 5: Convert 15V to 15000m V (V = Volts)
1. Key in 15
DEG
15.
2. Press [ ENG ] tw ice.
DEG
15000.
– 03
Ex. 6: Convert 15V to 0.015KV (V = Volts)
1. Key in 15
DEG
15.
2. Press [ 2ndF ] [
←
] [ 2ndF ] [
←
]
DEG
0.015
03
Order of Operat ions
Each calculat ion is perform ed in the fol lowing order of precedenc e:
1. Operations in par entheses.
2. Functions that requ ire pressing the f unction k ey before enter ing a
value, for ex ample, [ DATA ] in statistics mode, and [ EXP ].
3. Functions that requ ire values to be en tered be fore press ing the
function key, for exam ple, cos, sin, tan, cos
–1
, sin
–1
, tan
–1
, log, ln,
x
2
, x
–1
,
√
,
π
,
3
√
, x!, %, RND, ENG, , ,
and the unit
conversion funct ions.
4. Fractions.
5. +/–
6. x
y
,
X
√
7. nPr, nCr
8. ×,
÷
9. +, –
Correct ions
If you have made a m istake when enter ing a num ber and you have
not yet pressed an ar ithmetic operat or key, just press [ CE ] to clear
the last entry. You can then input th e desire d num ber again.
Alternative ly,you can delete d igits one at a tim e by pressing the
backspace key: [ 00
→
0 ].
Ex. 7: Change 12385 t o 789
1. Key in 12385
2. Press [ CE ] 789
DEG
789.
Ex. 8: Change 12385 t o 123
1. Key in 12385
2. Press [ 00
→
0 ] twice.
DEG
123.
In a series of calcu lations, you can cor rect errors in interm ediate
results by pressing [ON/C] . This clears th e calc ulation without c learing
me mo r y.
If you press the wrong a rithm etic operation key, j ust press [ CE ] and
then the correc t arithm etic key.
Exchange key
Pressing [ 2ndF ] [ X
← →
Y ] changes the cur rently displayed va lue to
the previous ly displayed value.
123 [ + ] 456 [
ENTER
]
DEG
579.00
[ 2ndF ] [ X
← →
Y ]
DEG
456.00
123 + 456 = ?
[ 2ndF ] [ X
← →
Y ]
DEG
579.00
Accu racy and C apac ity
Accuracy : ±1 in the 10th d igit.
Capacity: In general, ca lculations can be d isplayed as a m antissa of
up to 10 dig its, a 10-digit m antissa together w ith a 2-d igit exponent up
to 10
±99
, or as an integer between –9999 999999 and 9 999999999.
Numbers used as in put to a partic ular funct ion must be w ithin the
allowable range fo r that funct ion (as set out in the fo llowing tab le):
Functions Allowable input range
sin x, cos x, tan x
Deg: x < 4.5 × 10
10
deg
Rad: x < 2.5 × 10
8
π rad
Grad:
x < 5 × 10
10
grad
Also, for tan x :
Deg:
x ≠ 90 (2n +1)
Rad: x ≠
2
(2n +1)
Grad:
x ≠ 100 (2n +1)
where n is an int eg er .
sin
–1
x, cos
–1
x
x ≦ 1
tan
–1
x
x < 1 × 10
100
sinh x, cosh x
x ≦ 230.2585092
tanh x
x < 1 × 10
100
sinh
–1
x
x < 5 × 10
99
cosh
–1
x 1 ≦ x < 5 × 10
99
tanh
–1
x
x < 1
log x, ln x 1 × 10
–99
≦ x < 1 x 10
100
10
x
–1 × 10
100
< x < 100
e
x
–1 × 10
100
< x ≦ 230.2585092
x 0 ≦ x < 1 × 10
100
x
2
x < 1 × 10
50
x
–1
│ x│< 1 × 10
100
, X≠ 0
3
x
x < 1 × 10
100
X !
0
≦
x
≦
69, where x is an integer .
R
→
P 2 2
y x +
<
1 × 10
100
P
→
R 0
≦
r
<
1 × 10
100
Deg
:│θ│<
4.5 × 10
10
deg
Rad
:│θ│<
2.5 × 10
8
π
rad
Grad
:│θ│<
5 × 10
10
grad
Also, for tan x:
Deg
:│θ│≠
90 (2n+1)
Rad
:│θ│≠
2
(2n+1)
Grad
:│θ│≠
100 (2n+1 )
where
n is a n inte ge r.
│DD│ , MM, SS.S S < 1 × 10
100
,
0
≦ MM, SS.SS
x < 1 × 10
100
x
y
x > 0 : –1 × 10
100
< y log x < 100
x = 0 : y
> 0
x
< 0 : y = n, 1/(2n+1)
where
n is a n inte ge r
but –1 x 10
100
<
y
1
log
x 100
x
Y
y > 0 : x ≠ 0, –1 x 10
100
<
x
1
log y < 100
y = 0 : x > 0
y < 0 : x =2n+ 1, l/n
where
n is an integer oth er than 0
but –1 x 10
100
<
x
1
log
y 100
a
b
/c
Input
:The integer , num erator , den om inator
and fraction sym bols must in tota l be no
more than 10 d igits.
Result
:Displayed as a fraction w hen the
integer , num erator and de nom inator are
each less than 1 × 10
10
.
nPr, nCr
0
≦r ≦n, n ≦9999999999; n, r are integers.
ST A T x < 1 × 10
50
, Σ x < 1 × 10
100
0 ≦│Σ x
2
│<1 × 10
100
; n, r are integer
:n ≠0, S :n >1, σ:n >0
Range = 1 ~ r , 1
≦n ≦r, 8 0 ≦r ≦20400
→DEC 0 ≦ X ≦9999999999 (for ze ro or pos itive)
–9999999999
≦ X ≦ –1 (for negat ive)
→BIN
0
≦
X
≦
0111111111 (for zero or
pos it ive )
1000000000
≦ X ≦ 1111111111
(for negat ive)
→OCT 0 ≦ X ≦ 3777777777 (for ze ro or pos itive)
4000000000
≦ X ≦ 7777777777
(for negat ive)
→HEX 0 ≦ X ≦ 2540BE3FF (f or zero or pos itive)
FDABF41C01
≦ X ≦ FFFFFF FFFF (for
negative)
Ove rflow and Erro r Cond itions
The symbol E appears w hen any of t he following cond itions occur.
Press [ ON/C ] to rem ove the overf low or error indicator.
•
When you attem pt to perform a function ca lculation w ith a num ber
outside the allowable input range.
•
When you attem pt to divide a num ber by 0.
•
When you have press ed the [ ( ] k ey m ore than 15 tim es in a
single expression.
•
When any resu lt (whether interm ediate or f inal) or the
accumulated total in mem ory is outside ±9.99 9999999 × 10
99
•
When there are m ore than s ix pending ope rations.
If the calculator bec om es locked and pressing keys has no effect,
press [ M+ ] and [ ENG ] at the sam e tim e. This unlocks the calculator
and returns al l settings to the ir default values.
Basic Calculations
The following ex amples of basic ca lculations assum e that your
calculator is in decim al base and with floatin g point d isplay.
Mixed Arit hmetic Calc ulatio ns
1 + 2 × 3 = ? 1 [ + ] 2 [ × ] 3 [
ENTER
]
DEG
7.
–3.5 + 8
÷
2 = ?
3.5 [ +/– ] [ + ] 8 [
÷
] 2
[
ENTER
]
DEG
0.5
Paren theses C alcul atio ns
Operations ins ide parentheses a re always executed f irst. You can
specify up to 15 levels of parentheses in a single calc ulation. When
you enter the first pa renthes is, the
( ) indicator appears on the display
and remains until each opening p arenthes is has a correspond ing
closing parenthesis.
( 5–2 × 1.5 ) × 3
+ 0.8 × (– 4 )
= ?
[ ( ] 5 [ – ] 2 [ × ] 1.5 [ ) ] [ × ] 3
[ + ] 0.8 [ × ] 4 [ + /– ] [
ENTER
]
DEG
2.8
2 × ( 7 + 6 × ( 5
+ 4 )) = ?
2 [ × ] [ ( ] 7 [ + ] 6 [ × ] [ ( ] 5
[ + ] 4 [
ENTER
]
DEG
122.
Note: It is not necessa ry to press [ ) ] before [
ENTER
].
Repeat ing a Calc ulat ion
You can repeat the last num ber entered, or th e last operat ion
executed, by press ing [
ENTER
].
Repeating th e last num ber
3 [ × ] [
ENTER
]
DEG
9.
[
ENTER
]
DEG
27.
3 × 3 = ?
3 × 3 × 3 = ?
3 × 3 × 3 × 3 = ?
[
ENTER
]
DEG
81.
Repeating the last arithm etic operation
321 [ + ] 357 [
ENTER
]
DEG
678.
321 + 357 = ?
654 + 357 = ?
654 [
ENTER
]
DEG
1011.
579 [ – ] 159 [
ENTER
]
DEG
420.
579 – 159 = ?
456 – 159 = ?
456 [
ENTER
]
DEG
297.
3 [ × ] 6 [ × ] 45 [
ENTER
]
DEG
810.
23 [
ENTER
]
DEG
414.
18 × 45 = ?
18 × 23 = ?
18 × (0.5x10
2
) = ?
0.5 [ EXP ] 2 [
ENTER
]
DEG
900.
96 [
÷
] 8 [
ENTER
]
DEG
12.
75 [
ENTER
]
DEG
9.375
96
÷
8 = ?
75
÷
8 = ?
(1.2x10
2
)
÷
8 = ?
1.2 [ EXP ] 2 [
ENTER
]
DEG
15.
Perce ntage Cal cula tions
120 [ × ] 30 [ 2nd F ] [ % ]
[
ENTER
]
DEG
36.
30% of 120 = ?
70% of 120 = ?
70 [ 2ndF ] [ % ] [
ENTER
]
DEG
84.
88 is 55% of w hat
number?
88 [
÷
] 55 [ 2ndF ] [ % ]
[
ENTER
]
DEG
160.
30% mark up of
120 = ?
120 [ + ] 30 [ 2nd F ] [ % ]
[
ENTER
]
DEG
156.
30% discount of
120 = ?
120 [ – ] 30 [ 2ndF ] [ % ]
[
ENTER
]
DEG
84.
Memory Calc ulations
•
The M indicator appe ars when a num ber is s tored in memory.
•
Recalling from memory does not de lete the contents of m em ory.
•
The mem ory is not available w hen you are in statistics mode.
•
To copy the displayed num ber to m em ory, press [ X
→
M ].
•
To clear the m emory, press [ 0 ] [ X
→
M ], or [ CE ] [ X
→
M ], in
that order.
[ CE ] [ X
→
M ]
DEG
0.
3 [ × ] 5 [ M+ ]
M
DEG
15.
56 [
÷
] 7 [ M+ ]
M
DEG
8.
74 [ – ] 8 [ × ] 7 [ M + ]
M
DEG
18.
[ MR ]
M
DEG
41.
3 × 5
+ 56
÷
7
+ 74 – 8 × 7
Total = ?
0 [ X
→
M ]
DEG
0.
Commo n Mat h Cal culati ons
The following ex ample calculations assum e that your d isplay is fix ed
at 2 decim al places.
Recipr ocal, Factor ial
25 . 1
1
= ?
1.25 [ 2ndF ] [ x
–1
] [
ENTER
]
DEG
0.80
5! = ? 5 [ 2ndF ] [ x ! ] [
ENTER
]
DEG
120.00
Square, Square Root, Cube Root, Power , O ther Roots
2
2
+ 3
4
= ? 2 [ x
2
] [ + ] 3 [ x
y
] 4 [
ENTER
]
DEG
85.00
5 ×
3
27
+
34
= ?
5 [ × ] 27 [ 2ndF ] [
3
√
] [ + ]
34 [
√
] [
ENTER
]
DEG
20.83
9
72
= ?
72 [ 2ndF ] [
X
√
] 9 [
ENTER
]
DEG
1.61
Logar ithm s and An tilogar ithm s
ln7 + log100 = ? 7 [ ln ] [ + ] 1 00 [ log ] [
ENTER
]
DEG
3.95
10
2
= ? 2 [ 2nd F ] [ 10
x
] [
ENTER
]
DEG
100.00
e
5
– e
–2
= ?
5 [ 2ndF ] [ e
x
] [ – ] 2 [+/–]
[ 2ndF ] [ e
x
] [
ENTER
]
DEG
148.28
Fractio n calcula tions
Fractions are displayed as follows:
5
」
12
=
12
5
56
∪
5
」
12
= 56
12
5
Note : The display is truncated if the integer, num erator, denominator
and fraction sym bols together a re more than 1 0 digits.
Press [ 2ndF ] [
→
d
/c ] to conv ert the disp layed value to an improper
fraction.
2 [ a
b
/c ] 3 [ + ] 7 [ a
b
/c ] 3
[ a
b
/c ] 5 [
ENTER
]
DEG
8
∪
4
」
15
3
2
+ 7
5
3
= 8
15
4
=
15
124
[ 2ndF ] [
→
d
/c ]
DEG
124
」
15
If you press [ a
b
/c ] after press ing [
ENTER
], or if a fract ion was
combined w ith a decimal num ber, the answ er is displayed as a
decimal num ber.
5 [ a
b
/c ] 4 [ a
b
/c ] 9 [ + ] 3
[ a
b
/c ] 3 [ a
b
/c ] 4 [
ENTER
]
DEG
9
∪
7
」
36
5
9
4
+ 3
4
3
= 9
36
7
= 9.19
[ a
b
/c ]
DEG
9.19
8
9
4
+ 3.75 = 12.19
8 [ a
b
/c ] 4 [ a
b
/c ] 9 [ + ]
3.75 [
ENTER
]
DEG
12.19
Where possible, a fr action is reduced to its low est terms after you
press [ + ], [ – ], [ × ], [
÷
] or [
ENTER
].
3
21
119
= 8
3
2
3 [ a
b
/c ] 119 [ a
b
/c ] 21
[
ENTER
]
DEG
8
∪
2
」
3
A result is d isplayed in decim al format if th e integer, n umerator,
denominator and fr action sym bols are togethe r m ore than 10 digits.
12345
16
5
+5
13
6
= 12350.77
12345 [ a
b
/c ] 5 [ a
b
/c ] 16
[ + ] 5 [ a
b
/c ] 6 [ a
b
/c ] 13
[
ENTER
]
DEG
12350.77
Convert ing An gular Unit s
You can specify an angular unit of degrees (DEG ), radians (RA D), or
grads (GRAD). Yo u can also conver t a value expressed in one
angular un it to its correspond ing va lue in another ang ular unit.
The relation betw een the angular u nits is:
180° =
π
radians = 200 grads
•
To change the angu lar unit sett ing to another setting, press
[ DRG ] repeated ly until the an gular un it you want is indicated in
the display.
•
After entering the value of an an gle, press [ 2 ndF ] [ DRG
→
]
repeatedly unt il the value is converte d to the d esired unit.
90
DEG
90.
[ 2ndF ] [ DRG
→
]
RAD
1.57
90° (deg)
= ? (rad)
= ? (grad)
[ 2ndF ] [ DRG
→
]
GRAD
100.00
Trigon ome tric and In vers e Trigon ometr ic Fun ctio ns
Before undertak ing a trigonom etric or inverse trigonometric
calculation, m ake sure that the ap propriate a ngular unit is set.
3 sin 85° = ? 3 [ × ] 85 [ sin ] [
ENTER
]
DEG
2.99
cos (
4
rad) = ?
[ 2ndF ] [
π
] [
÷
] 4 [
ENTER
]
[ cos ]
RAD
0.71
tan 150 grad = ? 150 [ tan ]
GRAD
–1.00
sin
–1
0.5 = ? deg 0 .5 [ 2ndF ] [ s in
–1
]
DEG
30.00
cos
–1
(
2
1
) =
? rad
2 [
√
] [ 2ndF ] [ x
–1
] [ 2ndF ]
[ cos
–1
]
RAD
0.79
tan
–1
1 = ? grad 1 [ 2ndF ] [ tan
–1
]
GRAD
50.00
Hype rboli c and I nverse hype rbolic funct ions
cosh1.5+sinh1.5
= ?
1.5 [ HYP ] [ cos ] [ + ] 1 .5
[ HYP ] [ sin ] [
ENTER
]
DEG
4.48
sinh
–1
7 = ?
7 [ HYP ] [ 2ndF ] [ sin
–1
]
DEG
2.64
tanh 1 = ? 1 [ HYP ] [ tan ]
DEG
0.76
Rectan gular and P olar coor dinat es
Rectangular Coord inates Polar Coord inates
a + b i = r (cosθ + i sin θ)
Note: B efore undertak ing a coordinates conversion calcu lation, m ake
sure that the approp riate angu lar un it is set.
Conver ting from R ectangu lar to Polar
5 [ a ] 6 [ b ] [ 2ndF ] [ R
→
P ]
DEG
7.81
If a = 5 and b = 6,
what are
r and
θ
?
[ b ]
DEG
50.19
Convertin g from Polar to Rectangular
25 [ a ] 56 [ b ] [ 2nd F ]
[ P
→
R ]
DEG
13.98
If r = 25 and
θ
=
56°, what are
a
and
b?
[ b ]
DEG
20.73
Permut ations and Co mbinatio ns
nPr =
)! r n (
! n
−
nCr =
)! r n ( ! r
! n
−
How m any
permutations of 4
items can you
select from a set
of 7 item s?
7 [ 2ndF ] [ nPr ] 4 [
ENTER
]
DEG
840.00
How m any
combinations of 4
items can you
select from a set
of 7 item s?
7 [ 2ndF ] [ nCr ] 4 [
ENTER
]
DEG
35.00
Sexage simal
↔
Decimal f orm Co nver sions
You can convert a sex agesim al figure (degree , m inute and second) to
a decim al number by press ing [
] and convert a decim al number
to a sexagesim al figure by press ing [ 2ndF ] [
].
Sexagesim al figures are displayed as fo llows:
12
45
׀
30
׀ ׀
5
= 12 degrees, 45 m inutes, 30.5
seconds
Note: If the tota l num ber of digits in a DD, M M and SS.SS figure
exceeds 8, the f igure is truncated .
Conver ting from S exagesimal to Decim al
12 deg., 45 m in.,
30.5 sec.= ?
12 [
] 45 [ ] 30.5
[
]
DEG
12.76
Conver ting from Decim al to Sexagesim al
2.12345 = ? 2.12345 [ 2ndF ] [
]
DEG
2
7
׀
24
׀׀
42
Base-n Calc ulation s
Conver ting between bases
You can add, subtrac t, m ultiply, and divide b inary, octal, and
hexadecim al numbers in add ition to decim al num bers. Select the
number base you w ant by press ing [
→
BIN], [
→
OCT], [
→
HEX], or
[
→
DEC]. The BIN , OCT , and HEX indicators show you which base
you are using. (If none of these indicators is displayed, you are us ing
decimal base.)
The number keys that are act ive in a particula r base are:
Binary base: [ 0 ] and [ 1 ]
Octal base: [ 0 ] to [ 7 ]
Decimal base: [ 0 ] to [ 9 ]
Hexadecim al base: [ 0 ] to [ 9 ] and [ A ] to [ F ]
[ 2ndF ] [
→
DEC] 31
DEG
31.
[ 2ndF ] [
→
BIN]
DEG BIN
11111.
[ 2ndF ] [
→
OCT]
DEG OCT
37.
31 (base 10)
= ? (base 2)
= ? (base 8)
= ? (base 16)
[ 2ndF ] [
→
HEX]
DEG HEX
1F.
[ 2ndF ] [
→
HEX] 4 [ × ] 1B
[
ENTER
]
DEG HEX
6C.
[ 2ndF ] [
→
BIN]
DEG BIN
1101100.
[ 2ndF ] [
→
DEC]
DEG
108.00
4 × 1B (base 16)
= ? (base 2)
= ? (base 10)
= ? (base 8)
[ 2ndF ] [
→
OCT]
DEG OCT
154.
Negative Num bers and Complem ents
In binary, octal, an d hexadec imal bases, nega tive num bers are
expressed as com plements. The com plem ent is the result of
subtracting that n umber from 10000000000 in that num ber’s base.
You do this by press ing [+/–] in a non-dec imal base.
Calculate the
complement of
binary num ber
11011
[ 2ndF ] [
→
BIN ] 11011 [+ /–]
DEG BIN
1111100101.
Complex Number C alculations
Press [ CPLX ] to ente r com plex number m ode. The CPLX indic at or
appears on the d isplay. You can add, subtract , multiply, and d ivide
co mp l e x n u mb er s .
Complex num bers are gener ally represent ed as
a + b i, where a is th e
real part and
bi is the im aginary part .
[ 2ndF ] [ CPLX ] 7 [ a ] 9
[ +/– ] [ b ] [ + ] 15 [ a ] 10 [ b ]
[
ENTER
]
DEG CPLX
22.00
( 7 – 9 i ) +
(15 + 10 i) = ?
[ b ]
DEG CPLX
1.00
Note: Memory calcu lation is ava ilable in com plex num ber mode.
Random Numbers
Press [ 2ndF ] [ RND ] to gene rate a random num ber between 0.000
and 0.999.
Unit Co nversi ons
The unit convers ion keys are [°F
← →
°C ], [ mmH g
← →
Kpa ], [ gal
← →
I ],
[ lb
← →
kg ] and [ oz
← →
g ]. The follow ing exam ple illustrates the gen eral
procedure for conve rting valu es from one un it to another.
12 in = ? cm
12 [ A
→
B ] [ 2ndF ] [ in
← →
cm]
DEG
30.48
98 cm = ? in
98 [ 2ndF ] [ A
←
B ] [ 2ndF ]
[ in
← →
cm ]
DEG
38.58
Statistics
Press [ 2ndF ] [ STAT ] to enter stat istics mode. The STAT i ndi ca tor
appears on the d isplay. In statist ics mode you can ca lculate the
following single-var iable statistics:
n num ber of data items
Σx sum of the values of al l the data item s
Σx
2
sum of the squares
mean value
s sample standard deviation
1 n
/n ) x ( x
2 2
−
−
∑ ∑
σ population standa rd deviation
n
/n ) x ( x
2 2
∑ ∑
−
Continued on othe r side
hp 9s
Scienti fic Cal culator