Casio fx-9860G AU PLUS - Page 8

CASIO
E-6
Subtraction Sign and Negative Sign/Negative Number Powers
Use the  key to enter a subtraction sign, and the  key to enter a negative
sign.
Example 1: To perform the calculation 10+8–3
K@(RUN • MAT)
@?GB
U
Actual solution: 15
Example 2: To perform the calculation –10+8–3
K@(RUN • MAT)
@?GB
U
Actual solution: –5
Example 3: To perform the calculation 10+8+(–3)
K@(RUN • MAT)
@?GB
U
Actual solution: 15
The above calculation also can be entered as shown below.
@?GB
Perform calculations that include raising a negative value to a power as shown
below.
Example 1: To perform the calculation: (–6)
2
=36
K@(RUN • MAT)
K(SET UP)(Line))
EV
U
Example 2: To perform the calculation: –6
2
= –36
K@(RUN • MAT)
K(SET UP)(Line))
EV
U
Differential and Integration Calculations
Example 1: If a ball is dropped from a height of 100 meters, how far will it have
fallen after three seconds?
• Use a 9.8 meters per second per second for gravitational
acceleration, and disregard air friction.
Perform the following calculation:
3
0

9.8xdx.
Select the integration function from the menu that appears when you
select {CALC} on the option (OPTN) menu.
K@(RUN • MAT)
K(SET UP)(Line))
*(CALC)(
°dx)HG
T?B
U
Actual solution: 44.1 meters
This calculation can be verified using the formula
y =
2
1
gt
2
, which yields
2
1
s 9.8 s 3
2
.
Example 2: If a ball is dropped from a height of 100 meters, at what speed will it
be traveling after three seconds?
• Use a 9.8 meters per second per second for gravitational
acceleration, and disregard air friction.
Use the expression
f(x)=
dx
d
(
2
1
• 9.8x
2
) to calculate f(3).
Select the differential function from the menu that appears when you
select {CALC} on the option (OPTN) menu.
D