MathGroup Archive 2003

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: multiplying matrice rows


Hi,

and

m = {{1, 2, 3}, {1, 2, 3}, {1, 2, 3}};
amatrix = {{a, b, c},
        {a, b, c},
       {a, b, c}}

MapAt[Dot[amatrix, #] &, m, {2}]

with correct postions in MapAt[] does not help?

Regards
  Jens

Dragutin Culinovic wrote:
> 
> How can I to multiply enumerated list of rows of an matrice on following
> way:
> To multyply each row (except rows a,b and c)of matrice A withe row a of
> the same matrice, and replace that row (not a row) with result.
> 
> rows b and c are last rows, row a is any row in the range 1->b(exclusive)
> 
> THX


  • Prev by Date: Re: ComplexExpand
  • Next by Date: Re: Simple Question -- Incrementing All Elemnts in A list by 1
  • Previous by thread: Re: multiplying matrice rows
  • Next by thread: Re: multiplying matrice rows