HP 50g Characterizing a matrix The matrix Norm menu, Function DET, Function Trace, TrA = ∑aii

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

n

tr(A) = ∑aii

i=1 .

Examples:

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