HP 48gII Graphing, 50g Graphing manual IDIV2, Iegcd, DIV2, Iquot, Ax+by=c

•If the argument is a name, the name must identify a variable containing a square matrix. In this case, the elements of the matrix are replaced by those of the identity matrix (complex if the original matrix is complex).

Access:	!Ø CREATE IDN		( Ø is the leftshift of the		5key).
	!´MATRIX MAKE IDN		( ´is the leftshift of the		Pkey).
Input/Output:
		Level 1/Argument 1		Level 1/Item 1
		n	→	[[ Rmatrix identity ]]
		[[ matrix ]]	→	[[ matrixidentity		]]
		'name'	→	[[ matrixidentity		]]
See also:	CON
IDIV2
Type:	Command
Description:	For two integers, a and b, returns the integer part of a/b, and the remainder, r.
Access:	Arithmetic, !ÞINTEGER
Input:	Level 2/Argument 1: a.
	Level 1/Argument 2: b.
Output:	Level 2/Item 1: The integer part of a/b.
	Level 1/Item 2: The remainder.
Flags:	Numeric mode must not be set (flag –3 clear).
	Radians mode must be set (flag –17 set).
Example:	Return the integer part and the remainder of 11632/864.
Command:	IDIV2(11632,864)
Result:	{13,400}
See also:	DIV2, IQUOT
IEGCD
Type:	Command
Description:	Given two integers x and y, returns three integers, a, b, and c, such that:
	ax+by=c
	where c is the GCD of x and y.
Access:	PARITH or Arithmetic, !ÞINTEGER
Input:	Level 2/Argument 1: x.
	Level 1/Argument 2: y.
Output:	Level 3/Item 1: c.
	Level 2/Item 2: a.
	Level 1/Item 3: b.
	Note the order, c is first.
Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
	Radians mode must be set (flag –17 set).
Example:	Find a, b and c such that a18 + b24 = c, where c is the GCD of 18 and 24.
Command:	IEGCD(18,24)
Result:	{6,-1,1}

Full Command and Function Reference 3111