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1
Triangular area:
S = = bcSinA
2
Circular area:
S = n r 2
J
Fan-shaoed area:
,2e
4 .
Area of parallelogram:
S = abSinQ
5
Elliptical area:
S =tnb
b .
Trapeziform area:
S = : h + b \ h
Spherical surface area:
S = 4ta"2
8 .
Cylindrical surface area:
S =2m(h+ r\
I
Spherical volume:
t t
1 0
Cylindrical volume:
V = m z h
1 1 . Conical volume:
1 2 .
Sum of arithmetic progression:
42ao + b -r')dl
1 3 .
Sum of geometric progression:
_ a o ( r "
- r )
1 4
Sum of square number:
s =:,(tr + l) (2, +l)
1 5 . Sum of cubic number:
S = ( 1 n ( n + l ) ) '
1 6 .
Distance between arbitrary two points:
d = , l e r - x r ) z + ( y 2 - y r ) 2
1 7 .
Included angle of the intersecting lines:
^
r
k2-111
l + k l k 2
1 8 . Law of cosines:
=uV;a -zt,cose
1 9 .
Law of sines:
a = 2 r s i n A
20.
Displacement
of uniformly accelerated linear molion:
vot + ) at'
2 1 .
Velocity of uniformly accelerated linear motion:
v = v " + a t
22.
Period of circular motion (1):
T =2to"/v
23.
Period of circular motion (2):
T = 2 r / a
24.
Period of simple pendulum:
, . l !
25
Electric oscillation frequency:
- l
26
Resistive formula:
a = p ' 1
27.
Joule's theorem (1):
28.
Joule's theorem (2):
P = 1 2 R
29.
Resistance of shunt resistance:
-
R l * R 2
?n
Kinetic energy:
3 1 .
Gravitational potential energy:
E =mgh
32.
Centrifugal force ('l ):
f
= m v -
/
I In COMP mode, you can perform formula calculations using
one of the 38 built-in universal formulas.
Simply press fPli 15 to enter formula calculation mode and
the formula selection menu will be shown promptly.
Using Formula Galculation
1. Formula Selection and Display
. After entering the Formula Selection Menu, press
@
(orQ) for the next (last) formula page. Press lE
for
to display a formula.
. To instantly call for a specific formula before entering the
Formula Selection Menu:
1. Input the number of that formula
2. Press g S
3. Press [E to confirm
2. Input the Value for Each Variable Screen
. Press lE
to confirm the input value
. Only numeric values and pre-stored memories (to recall
by Incrl + memory variable) can be used as the input of
the formula.
3. Exit Formula Calculation
. Before a formula is confirmed: Press fdi l5
to exit
formula selection menu and return to the latest display.
. Press lcn ] or I or lanytime to exit the formula menu and
return to the initial display in COMP mode.
. Only the Calculation formula result can be stored into
variable memories via S
b
Example: To calculate Circular Area: S = fr' , with "/' = 2.5mm
MATHEMATICS
MODE: g i5 M
Replace the battery immediately when the display
characters are dim (even with a darker LCD display
contrast) OR when the following message appears on the
screen. Turn the calculator off and replace the lithium
battery immediately.
Please replace the lithium battery with the following
procedures:
1. Press g
"5 to power off the calculator.
2. Remove the screw that securely fixes the battery cover
in place.
3. Remove battery cover.
4. Remove the old battery with the tip of a ball pen or
similar sharp object.
5. Load the new battery with positive "+" side facing up.
6. Replace the battery cover, screw, and press @, S b
til
E
lcnl to initialize the calculator.
Caution: Risk of explosion if battery is replaced with an
incorrect type. Dispose of used battery according
to the instructions.
I Electromagnetic interference or electrostatic discharge
may cause the display to malfunction or the contents of
the memory to be lost or altered. Should this occur,
press l.t{1, eg '5 EE@to
restart the calculator.
F = m c o 2 r
E = e t(41w2)
Heron's Formula (Triangular area):
^
l ; i * .
. ; + i e
" = !
2
,
Z
o n
Z
- b x
c l
Critical angle of total reflection:
e = s i n t ( n 2 l n l )
68
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