HP 50g Graphing, 48gII Graphing manual Div, DIV2MOD, CURL, Hess

DIV

Type:	Command
Description:	Returns the divergence of a vector function.
Access:	Calculus, !ÖDERIV. & INTEG.
Input:	Level 2/Argument 1: An array representing a vector function.
	Level 1/Argument 2: An array containing the variables.
Output:	The divergence of the vector function with respect to the specified variables.
Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
Example:	Find the divergence of the following vector function:
	v = x2yi + x2yj + y2zk
Command:	˜	˜	˜
	DIV([X^2*Y, X^2*Y, Y^2*Z],[X,Y,Z])
Result:	Y*(2*X)+(X^2+Y^2)
See also:	CURL, HESS
DIV2
Type:	Command
Description:	Performs Euclidean division on two expressions. Stepbystep mode is available with this
	command.
Access:	Arithmetic, !ÞPOLYNOMIAL
Input:	Level 2/Argument 1: The dividend.
	Level 1/Argument 2: The divisor.
Output:	Level 2/Item 1: The quotient.
	Level 1/Item 2: The remainder.
Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
	Stepbystep mode can be set (flag –100 set).
	Radians mode must be set (flag –17 set).
Example:	Perform the following division:
	x2 + x + 1
	-----------------------
	2x + 4
Command:	DIV2(X^2+X+1,2*X+4)
Result:	{1/2(X-1),3}
DIV2MOD
Type:	Command
Description:	Performs Euclidean division on two expressions modulo the current modulus.
Access:	Arithmetic, !ÞMODULO
Input:	Level 2/Argument 1: The dividend.
	Level 1/Argument 2: The divisor.
Output:	Level 2/Item 1: The quotient.
	Level 1/Item 2: The remainder.

362 Full Command and Function Reference