Casio – Casio FX-CG10 User Manual
Page 62

CASIO
2-16
k Trigonometric and Inverse Trigonometric Functions
• Be sure to set the angle unit before performing trigonometric function and inverse
trigonometric function calculations.
• Be sure to specify Comp for Mode in the Setup screen.
Example
Operation
cos (
π
3
rad) =
2
1
(0.5)
!m(SET UP) cccccc 2(Rad) J
c$!E(π)c3w
c(!E( π ) /3 )w
2
•
sin 45°
× cos 65° = 0.5976724775 !m(SET UP) cccccc 1(Deg) J
2 *
s45 *c65 w*
1
sin
–1
0.5 = 30°
(
x
when sin
x
= 0.5)
!s(sin
–1
) 0.5 *
2
w
*
1
* can be omitted.
*
2
Input of leading zero is not necessary.
k Logarithmic and Exponential Functions
• Be sure to specify Comp for Mode in the Setup screen.
Example
Operation
log 1.23 (log
10
1.23) = 0.08990511144
l1.23 w
log
2
8 = 3
4(MATH)2(logab) 2e8w
K4(CALC) 6( g) 4(log a b) 2 ,8 )w
(–3)
4
= (–3)
Ч (–3) Ч (–3) Ч (–3) = 81 (-3 )M4 w
7
123 (= 123
1
7
) = 1.988647795
!M(
x
') 7e123w
7
!M(
x
') 123 w
• The Linear input/output mode and Math input/output mode produce different results when
two or more powers are input in series, like: 2
M 3 M 2.
Linear input/output mode: 2^3^2 = 64
Math input/output mode:
2
32
= 512
This is because the Math input/output mode internally treats the above input as: 2^(3^(2)).
(90° = radians = 100 grads)
π
2
(90° = radians = 100 grads)
π
2