HP 39gs Graphing manual Makemat, Rank, Rownorm, Rref, Schur, Size

LU	LU Decomposition. Factors a square matrix into three
	matrices:
	{[[lowertriangular]],[[uppertriangular]],[[permutation]]}
	The uppertriangular has ones on its diagonal.
	LU(matrix)
MAKEMAT	Make Matrix. Creates a matrix of dimension rows ×
	columns, using expression to calculate each element. If
	expression contains the variables I and J, then the
	calculation for each element substitutes the current row
	number for I and the current column number for J.
	MAKEMAT(expression, rows, columns)
	Example
	MAKEMAT(0,3,3) returns a 3×3 zero matrix,
	[[0,0,0],[0,0,0],[0,0,0]].
QR	QR Factorization. Factors an m×n matrix into three
	matrices: {[[m×m orthogonal]],[[m×n
	uppertrapezoidal]],[[n×n permutation]]}.
	QR(matrix)
RANK	Rank of a rectangular matrix.
	RANK(matrix)
ROWNORM	Row Norm. Finds the maximum value (over all rows) for
	the sums of the absolute values of all elements in a row.
	ROWNORM(matrix)
RREF	Reduced-Row Echelon Form. Changes a rectangular
	matrix to its reduced row-echelon form.
	RREF(matrix)
SCHUR	Schur Decomposition. Factors a square matrix into two
	matrices. If matrix is real, then the result is
	{[[orthogonal]],[[upper-quasi triangular]]}.
	If matrix is complex, then the result is
	{[[unitary]],[[upper-triangular]]}.
	SCHUR(matrix)
SIZE	Dimensions of matrix. Returned as a list: {rows,columns}.
	SIZE(matrix)

15-12 Matrices