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EL-9900 Graphing Calculator
PARAMETERS
Name of parameter
H
L
T
X
Y
D
Yscl
Content
highest altitude
horizontal distance
time
distance (after time Z)
altitude (after time Z)
time elapsed
scale of y-coordinate
Name of parameter
Xscl
Z
V
θ
C
B
A
Content
scale of x-coordinate
input of time period
initial velocity (V
0
)
angle (released angle)
highest altitude when released at 90˚
horizontal distance when released at 45˚
time period when released at 45˚
3
DisplayStep
Key Operation
1
2
Specify the programme mode.
Select the title PARABOLA.
Exercise
Find the horizontal distance and altitude three seconds after an object is thrown, when
the initial velocity is 25m/sec and the angle is 52˚.
Set up condition: angle unit in Deg mode, and decimal point in Float Pt
mode.
4
5
(Display of graph of parabola)
6
(Highest altitude when released at 90˚)
(Distance when released at 45˚)
(Time when released at 45˚)
(Display of highest altitude)
(Display of horizontal distance)
(Display of time until dropping of object)
7
(Display of distance after Z seconds)
(Display of altitude after Z seconds)
8
(Altitude and distance after Z seconds are
displayed on the parabola graph.)
Enter the value of the initial velocity.
Enter the angle value.
Enter the value of time period Z.
26
PRGM
CL
ENTER
SET UP
2nd F
A
1
C
25
ENTER
5
2
ENTER
3
ENTER
ENTER
ENTER
ENTER
1B1E