HP 49g Graphing Calculator - Manual (Page 56)

Keys (Continued) Description
R (iWRICES)
OPERATIONS SRAD Returns the spectral radius of a square
matrix. The spectral radius is the
absolute value of the largest eigenvalue
of the matrix.
R (MATRICES)
OPERATIONS OOND Retimis the cohmm-norm condition
number of a square matrix. The
condition number is defined to be the
product of the column norm of a square
matrix and the colunui norm of its
inverse.
0 (MATRICES)
OPERATIONS RANK Returns an estimate of the rank of a
matrix. The rank of a matrix is equal to
the luunber of non-zero singular values
of the matrix. If flag -54 is clear
(default), RANK treats any computed
singular value less than 10“^'* times the
size of the largest computed singular
value as zero. If flag -54 is set, RANK
comits all non-zero singular values no
matter what their size.
0 CMATRICES)
OPERATIONS DET Returns the determinant of a square
matrix. DET checks flag -54, and will
refine its computed value only if -54 is
clear (default).
0 (MATRICES)
OPERATIONS TRACE Returns the trace of a square matrix.
The trace of a matrix is equal to the
smn of the diagonal elements and also
equal to the sum of the eigenvalues of
the matrix.
Matrices and linear algebra
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