HP 39g+ Graphing Calculator Uživatelská příručka stáhnout pdf (Strana 189)

Matrices 13-11

DET Determinant of a square matrix.

DET(matrix)

DOT Dot Product of two arrays, matrix1 matrix2.

DOT(matrix1, matrix2)

EIGENVAL Displays the eigenvalues in vector form for matrix.

EIGENVAL(matrix)

EIGENVV Eigenvectors and Eigenvalues for a square matrix.

Displays a list of two arrays. The first contains the

eigenvectors and the second contains the eigenvalues.

EIGENVV(matrix)

IDENMAT Identity matrix. Creates a square matrix of dimension

size × size whose diagonal elements are 1 and off-

diagonal elements are zero.

IDENMAT(size)

INVERSE Inverts a square matrix (real or complex).

INVERSE(matrix)

LQ LQ Factorization. Factors an m × n matrix into three

matrices:

{[[ m × n lowertrapezoidal]],[[ n × n orthogonal]],

[[ m × m permutation]]}.

LQ(matrix)

LSQ Least Squares. Displays the minimum norm least squares

matrix (or vector).

LSQ(matrix1, matrix2)

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

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HP 39g+ Graphing Calculator Uživatelská příručka Strana 189