NORM  NORM Norm Calculation


Usage
 
 Calculates the norm of a matrix.  There are two ways to
 use the norm function.  The general syntax is
 
    y = norm(A,p)
 
 where A is the matrix to analyze, and p is the
 type norm to compute.  The following choices of p
 are supported
   -  p = 1 returns the 1-norm, or the max column sum of A
   -  p = 2 returns the 2-norm (largest singular value of A)
   -  p = inf returns the infinity norm, or the max row sum of A
   -  p = 'fro' returns the Frobenius-norm (vector Euclidean norm, or RMS value)
 For a vector, the regular norm calculations are performed:
   -  1 <= p < inf returns sum(abs(A).^p)^(1/p)
   -  p unspecified returns norm(A,2)
   -  p = inf returns max(abs(A))
   -  p = -inf returns min(abs(A))
 