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u ClassPad Operation
(1) On the application menu, tap
T
.
(2) On the Graph Editor window, tap the down arrow next to “y =”, or tap [Type].
(3) On the list that appears, tap the function type you want to select.
Storing a Function
This section presents a number of examples that illustrate how to store a Graph & Table
application function.
u To store a rectangular coordinate function (Y=)
Example: To store the rectangular coordinate function y = 2x
2
– 5 in line number y1
(1) On the Graph Editor window, tap [Type] and then [y=Type] to specify a rectangular
coordinate expression.
(2) Tap the box to the right of line number “y1”, and then input the expression:
2x{ 2-5.
(3) Press E to store the expression.
u To store a polar coordinate equation (r=)
Example: To store the polar coordinate equation r = 5sin3
θ
in line number r2
(1) On the Graph Editor window, tap [Type] and then [r=Type] to specify a polar coordinate
expression.
(2) Tap the box to the right of line number “r2”, and then input the expression:
k9fTsd8).
(3) Tap w to store the expression.
u To store parametric functions
Example: To store the parametric functions below in line numbers xt3/yt3
xt = 3sint
yt
= 3cost
(1) On the Graph Editor window, tap [Type] and then [ParamType] to specify parametric
expressions.
(2) Tap the box to the right of line number “xt3”, and then input the x-expression:
k9dTst)w.
(3) Tap the box to the right of line number “yt3”, and then input the y-expression:
9dct)w.
3-3-3
Storing Functions
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