Casio 3.04 IAngle Symbol (), IDerivative Symbol (’), IPrimality Test (isPrime)

2-4-13

Function Calculations

IAngle 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 = ΠΠ/4 to rectangular						[toRect] :2 
coordinates.	[1, 1]					4 ;U

IDerivative 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] 8 77
equation y’ = x.					8U
{y = 0.5 · x2 + const (1)}

Important!

The “dSolve” function can solve differential equations up to three degrees, so a maximum of three derivative symbols (y’’’) can be used. Executing a “dSolve” calculation that has more than three derivative symbols will result in an Invalid Syntax error.

IPrimality Test (isPrime)

The “isPrime” function determines whether the number provided as the argument is prime (returns TRUE) or not (returns FALSE). The syntax of the “isPrime” function is shown below.

isPrime(Exp/List[ ) ]

• Exp or all of the elements of List must be integers.

Problem	Use this keyboard:				Operation
	mth	abc	cat	2D
Determine whether the			Func		[isPrime] W 51 17
numbers 51 and 17 are					YU
prime.
(isPrime({51, 17})

20090601