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Characterizing a matrix (The matrix NORM
menu)
The matrix NORM (NORMALIZE) menu is accessed through the keystroke
sequence
„´. This menu is described in detail in Chapter 10 of the
calculator’s user’s guide. Some of these functions are described next.
Function DET
Function DET calculates the determinant of a square matrix. For example,
Function TRACE
Function TRACE calculates the trace of square matrix, defined as the sum
of the elements in its main diagonal, or
.
Examples:
∑
=
=
n
i
ii
atr
1
)(A
SG49A.book Page 8 Friday, September 16, 2005 1:31 PM