[Numpy-discussion] matrix norm

Jason Grout jason-sage@creativetrax....
Mon Oct 22 11:14:53 CDT 2012


On 10/22/12 11:08 AM, Charles R Harris wrote:

>
> The 2-norm and the Frobenius norm are the same thing.

For vectors, but I was talking about matrices and induced p-norms (sorry 
for not being clear).  Warren pointed out that the spectral norm (the 
induced 2-norm) is used in Octave as the default.  Does someone have 
matlab to test their implementation?  The fact that matlab has a 
separate command for the Frobenius norm indicates that they also may be 
using the spectral norm for the default matrix norm.

Thanks,

Jason



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