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Casio ClassPad 300 User Manual

Page 117

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20021201

The “piecewise” function returns one value when an expression is true, and another value
when the expression is false.

The syntax of the “piecewise” function is shown below.
piecewise(, , indeterminate>[ ) ]
or
piecewise(, , ,
[ ) ]

Problem

Use this keyboard:

Operation

mth

abc

cat

2D

For the expression

Func

[piecewise] 0

X, 1,

0 <

x

(

x

= variable), return 1

2 , 0 w

when

x

is greater than 0,

2 when

x

is 0 or less, and 0

when

x

is undefined.

k Angle Symbol ()

Use this symbol to specify the coordinate format required by an angle in a vector.
You can use this symbol for a vector only.

Problem

Use this keyboard:

Operation

mth

abc

cat

2D

Convert the polar

OPTN

Func

Change the [Angle] setting to

coordinates

r

= 2,

“Radian”.

θ = π /4 to rectangular

[toRect] [9 2 ),

coordinates.

[1, 1]

7/ 4 )]w

k Derivative Symbol (’)

A single derivative symbol indicates the first derivative of an equation in the format:
’.

Problem

Use this keyboard:

Operation

mth

abc

cat

2D

Solve the differential

CALC SMBL

Cmd

[dSolve] Y

=

X,X

equation

y

’ =

x

.

,

Yw

{

y

= 0.5 ·

x

2

+ const (1)}

2-4-10

Function Calculations