HP 50g Graphing, 48gII Graphing manual Bar, Axl, Axq, Axl, Axm, Gauss, Qxa

Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
See also:	AXL, AXQ
AXQ
Type:	Command
Description:	Converts a square matrix into the associated quadratic form.
Access:	Convert, !Ú MATRIX CONVERT, or matrices !Ø QUADRATIC FORM
Input:	Level 2/Argument 1: An n×n matrix.
	Level 1/Argument 2: A vector containing n variables.
Output:	Level 2/Item 1: The corresponding quadratic form.
	Level 1/Item 2: The vector containing the variables.
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 the quadratic form, expressed in terms of x, y, and z, associated with the following matrix:
		3 6 0
		2 4 1
		1 1 1
Command:
	AXQ([[3,6,0][2,4,1][1,1,1]],[X,Y,Z])
Result:	{3*X^2+(8*Y+Z)*X+(4*Y^2+2*Z*Y+Z^2),[X,Y,Z]}
See also:	AXL, AXM, GAUSS, QXA
BAR	Command
Type:
Description:	Bar Plot Type Command: Sets the plot type to BAR.
	When the plot type is BAR, the DRAW command plots a bar chart using data from one column
	of the current statistics matrix (reserved variable ΣDAT). The column to be plotted is specified by
	the XCOL command, and is stored in the first parameter of the reserved variable ΣPAR. The
	plotting parameters are specified in the reserved variable PPAR, which has the following form:
			{ (xmin, ymin) (xmax, ymax) indep res axes ptype depend }
	For plot type BAR, the elements of PPAR are used as follows:
	•	(xmin, ymin) is a complex number specifying the lower left corner of PICT (the lower left corner
		of the display range). The default value is (–6.5,–3.1) for the HP 48gII and (–6.5,–3.9) for the
		HP 50g and 49g+.
	•	(xmax, ymax) is a complex number specifying the upper right corner of PICT (the upper right
		corner of the display range). The default value is (6.5,3.2) for the HP 48gII and (6.5,4.0) for the
		HP 50g and 49g+.
	•	indep is either a name specifying a label for the horizontal axis, or a list containing such a name
		and two numbers, with the smaller of the numbers specifying the horizontal location of the first
		bar. The default value of indep is X.
	•	res is a real number specifying the bar width in user unit coordinates, or a binary integer
		specifying the bar width in pixels. The default value is 0, which specifies a bar width of 1 in
		userunit coordinates.
	•	axes is a list containing one or more of the following, in the order listed: a complex number
		specifying the userunit coordinates of the plot or igin, a list specifying the tickmark annotation,
		and two strings specifying labels for the horizontal and vertical axes. The default value is (0,0).

326 Full Command and Function Reference