HP 39gs Graphing manual Examples

SPECNORM	Spectral Norm of matrix.
	SPECNORM(matrix)
SPECRAD	Spectral Radius of a square matrix.
	SPECRAD(matrix)
SVD	Singular Value Decomposition. Factors an m × n matrix
	into two matrices and a vector:
	{[[m × m square orthogonal]],[[n × n square orthogonal]],
	[real]}.
	SVD(matrix)
SVL	Singular Values. Returns a vector containing the singular
	values of matrix.
	SVL(matrix)
TRACE	Finds the trace of a square matrix. The trace is equal to
	the sum of the diagonal elements. (It is also equal to the
	sum of the eigenvalues.)
	TRACE(matrix)
TRN	Transposes matrix. For a complex matrix, TRN finds the
	conjugate transpose.
	TRN(matrix)

Examples

Identity Matrix	You can create an identity matrix with the IDENMAT
	function. For example, IDENMAT(2) creates the 2×2
	identity matrix [[1,0],[0,1]].
	You can also create an identity matrix using the
	MAKEMAT (make matrix) function. For example, entering
	MAKEMAT(I¼J,4,4) creates a 4 × 4 matrix showing the
	numeral 1 for all elements except zeros on the diagonal.
	The logical operator ¼ returns 0 when I (the row number)
	and J (the column number) are equal, and returns 1 when
	they are not equal.

Matrices 15-13