Hp 49g+ User Manual download pdf (Page 329)

These functions are described next. Because many of these functions use

concepts of matrix theory, such as singular values, rank, etc., we will include

short descriptions of these concepts intermingled with the description of

Function ABS

Function ABS calculates what is known as the Frobenius norm of a matrix. For

a matrix A = [a

, the Frobenius norm of the matrix is defined as

If the matrix under consideration in a row vector or a column vector, then the

Frobenius norm , ||A||

, is simply the vector’s magnitude. Function ABS is

accessible directly in the keyboard as „Ê.

Try the following exercises in ALG mode (using the matrices stored earlier for

matrix operations):

Function SNRM

Function SNRM calculates the Spectral NoRM of a matrix, which is defined as

the matrix’s largest singular value, also known as the Euclidean norm of the

matrix. For example,

Hp 49g+ User Manual Page 329