Scientific function calculations, K trigonometric/inverse trigonometric functions – Casio FX-820MS User Manual
Page 20
E-18
COMP
Scientific Function
Calculations
Use the
F key to enter the COMP Mode when you
want to perform basic arithmetic calculations.
COMP .............................................................
F
1
• Certain types of calculations may take a long time to
complete.
• Wait for the result to appear on the display before start-
ing the next calculation.
•
π
= 3.14159265359
k Trigonometric/Inverse Trigonometric
Functions
• To change the default angle unit (degrees, radians,
grads), press the
F
key a number of times until you
reach the angle unit setup screen shown below.
1 2 3
Deg Rad G r a
• Press the number key (
1
,
2
, or
3
) that corresponds
to the angle unit you want to use.
(90
° =
radians = 100 grads)
• Example 1: sin 63
°52o41ǥ ҃ 0.897859012
q
.....
1
(Deg)
S
63
I
52
I
41
I
=
π
2
• Example 2: cos
(
rad
)
҃ 0.5
q
.....
2
(Rad)
W
R
A
x
\
3
T
=
π
3