Casio FX-7400G User Manual page 60

u u u u u To graph parametric functions
You can graph parametric functions that can be expressed in the following format.
f g
(X, Y) = ( (T),
Example To graph the following parametric functions:
x
= 7 cos T – 2 cos 3T
y
= 7 sin T – 2 sin 3T
Use the following View Window parameters.
Xmin
Xmax
Xscl
Tmin
Tptch
1. In the set-up screen, specify the appropriate graph type for F-Type.
!Z2(Parm)
2. Set the default angle unit to radians (Rad).
cc2(Rad)Q
3. Input the parametric functions.
A!4(SKTCH)1(Cls)w
2(GRPH)2(Parm)
hcT-ccdT,
hsT-csdT)
4. Press w to draw the graph.
w
u u u u u To graph inequalities
You can graph inequalities that can be expressed in the following four formats.
y f x
• > ( )
y f x
• < ( )
y f x
• > ( )
y f x
<
• ( )
(T))
= –20 Ymin
= 20 Ymax
= 5 Yscl
= 0 Tmax
= "÷36
Graphing Chapter 4
= –12
= 12
= 5
= 2"
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