Re: [ublas] Doc error in norm_2?

Subject: Re: [ublas] Doc error in norm_2?
From: Umut Tabak (utabak_at_[hidden])
Date: 2009-01-29 09:36:50

Neal Becker wrote:
>  Doc says:
>    // norm_2 v = sqrt (sum (v [i] * v [i]))
> http://www.boost.org/doc/libs/1_37_0/libs/numeric/ublas/doc/vector_expression.htm#vector_expression
>
> Shouldn't that be sqrt(sum (|v[i]|**2)) ?
>
>
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two mutual terms are multiplied if they are both negative they were 
'abs'ed already I suppose...