Compute the norm of a vector or matrix, as determined by the
type.
maxeig(x)# S4 method for madness
maxeig(x)
# S4 method for madness,missing
norm(x)
# S4 method for madness,ANY
norm(x, type = "One")
the matrix norm, a non-negative number.
madness object.
character string, specifying the type of matrix norm to be computed. A character indicating the type of norm desired.
"O", "o" or "1"specifies the one norm, (maximum absolute column sum);
"I" or "i"specifies the infinity norm (maximum absolute row sum);
"F" or "f"specifies the Frobenius norm (the
Euclidean norm of x treated as if it were a vector);
"M" or "m"specifies the maximum modulus of
all the elements in x; and
"2"specifies the “spectral” or 2-norm, which
is the largest singular value (svd) of x.
The default is "O". Only the first character of
type[1] is used.
Steven E. Pav shabbychef@gmail.com