Re: enquiry

*To*: mathgroup at smc.vnet.net*Subject*: [mg89219] Re: [mg89170] enquiry*From*: "W_Craig Carter" <ccarter at mit.edu>*Date*: Thu, 29 May 2008 07:07:02 -0400 (EDT)*References*: <200805280844.EAA27103@smc.vnet.net>

Hello Abubaker, There are some syntax problems with your expression (y* is not a valid variable, you have unbalanced parenthesis..) However, after you work these syntax problems out, Table is what you will want to use: e.g., V[m_, n_] := KroneckerDelta[m, n] Exp[2 Pi I n (((j - 1/2)/2) Q)] mat = Table[V[m, n], {m, 1, 6}, {n, 1, 6}]; MatrixForm[mat] On Wed, May 28, 2008 at 4:44 AM, abubaker alshafee <bico98 at yahoo.com> wrote: > > Hi All > > I am tryin to build a Matrix > Vmn = Array[v, {m, n}] with V equal to > > V = (-(y* N[BesselK[13 I, 2 Pi n y*]] > Exp[(13 Pi)/2]] Exp[2 Pi I n (((j - 1/2)/2) > Q)] Exp[-2 Pi I m (((j - 1/2)/2) Q)])) > (1/(2 Q)) + KroneckerDelta[m, n] > (Sqrt[y] N[BesselK[13 I, 2 Pi m y] > Exp[(13 Pi)/2]])

**References**:**enquiry***From:*abubaker alshafee <bico98@yahoo.com>