Casio ClassPad 300 manual 117

2-4-10

Function Calculations

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(<condition expression>, <return value when true>, <return value when false or indeterminate>[ ) ]

or

piecewise(<condition expression>, <return value when true>, <return value when false>, <return value when indeterminate>[ ) ]

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.

kAngle 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

kDerivative Symbol (’)

A single derivative symbol indicates the first derivative of an equation in the format: <variable name>’.

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 · x2 + const (1)}

20021201