ECTACO
®
jetBook
®
K-12
User Manual
54
SCIENCE AND MATH
Graphing Calculator
This application is capable of plotting function graphs.
• In the
Main Menu
, select
Science and Math
. You will
see the
Science and Math
window.
• Select
Graphing Calculator
.
For example, to plot the graph of the function Y = x*sin (x)
on the interval [-5, 5], please follow the steps below.
• Using the trackball, "press" the following on-screen
keys:
Y=
x,t,
θ
*
sin
x,t,
θ
)
• Use the
fx
key to hide or show the additional fields:
From
,
To
, and
Step
.
• Use the
Speaker
key to place the cursor to the
From
field. Enter the value -5. Use the "+/-" key to change sign.
• Use the
Speaker
key to place the cursor to the
To
field.
Enter the value
5
.
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