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 Taylor polynomial. System of equations for the coefficients. marraco Fellow Posts: 93 Threads: 11 Joined: Apr 2011 05/06/2015, 02:42 PM (This post was last modified: 05/06/2015, 02:52 PM by marraco.) (05/05/2015, 07:40 AM)Gottfried Wrote: P*A = A*Bb I think that we are speaking of different things. Obviously, there should be a way to demonstrate the equivalence of both, because they are trying to solve the same problem; looking for the same solution. But as I understand, the Carleman matrix A only contains powers of a_i coefficients, yet if you look at the red side, it cannot be written as a matrix product A*Bb, because it needs to have products of a_i coefficients (like $a_1^3.a_3^2.a_5^8.a_...$). Maybe it is a power of A.Bb, or something like A^Bb? The Pascal matrix on the blue side is the exponential of a much simpler matrix $ \exp \left ( \left [ \begin{matrix} . & 1 & . & . & . & . & . \\ . & . & 2 & . & . & . & . \\ . & . & . & 3 & . & . & . \\ . & . & . & . & 4 & . & . \\ . & . & . & . & . & 5 & . \\ . & . & . & . & . & . & 6 \\ . & . & . & . & . & . & . \end{matrix} \right ] \right ) = \left [ \begin{matrix} 1 & 1 & 1 & 1 & 1 & 1 & 1 \\ . & 1 & 2 & 3 & 4 & 5 & 6 \\ . & . & 1 & 3 & 6 & 10 & 15 \\ . & . & . & 1 & 4 & 10 & 20 \\ . & . & . & . & 1 & 5 & 15 \\ . & . & . & . & . & 1 & 6 \\ . & . & . & . & . & . & 1 \end{matrix} \right ]$ Maybe the equation can be greatly simplified by taking a logarithm of both sides. I have the result, but I do not yet know how to get it. « Next Oldest | Next Newest »

 Messages In This Thread Taylor polynomial. System of equations for the coefficients. - by marraco - 04/30/2015, 03:24 AM RE: Taylor polinomial. System of equations for the coefficients. - by tommy1729 - 05/01/2015, 08:37 AM RE: Taylor polinomial. System of equations for the coefficients. - by marraco - 05/01/2015, 09:42 AM RE: Taylor polinomial. System of equations for the coefficients. - by tommy1729 - 05/01/2015, 09:43 PM RE: Taylor polinomial. System of equations for the coefficients. - by marraco - 05/03/2015, 04:46 AM RE: Taylor polinomial. System of equations for the coefficients. - by marraco - 05/03/2015, 12:07 PM RE: Taylor polinomial. System of equations for the coefficients. - by Gottfried - 05/05/2015, 07:40 AM RE: Taylor polinomial. System of equations for the coefficients. - by marraco - 05/06/2015, 02:42 PM RE: Taylor polinomial. System of equations for the coefficients. - by Gottfried - 05/06/2015, 04:17 PM RE: Taylor polynomial. System of equations for the coefficients. - by marraco - 05/07/2015, 09:45 AM RE: Taylor polynomial. System of equations for the coefficients. - by marraco - 01/14/2016, 12:47 AM

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