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 Author Comment/Response yehuda 11/28/12 01:20am m and n are local variables of Table, so PieceWise has to be defined within Table and not outside of it, as you did. Outside Table there is no meaning to the local variables So, the order of Piecewise and Table need to be reversed A=Table[Piecewise[{{0, EvenQ[n]}, {8/Pi^2*m*(-1)^m/((2*n - 1)*((2*n - 1)^2 + m^2)), True}}], {n, 1, Nmax}, {m, 1, Mmax}] A small test With[{Nmax = 3, Mmax = 4}, Table[Piecewise[{{0, EvenQ[n]}, {8/Pi^2*m*(-1)^m/((2*n - 1)*((2*n - 1)^2 + m^2)), True}}], {n, 1, Nmax}, {m, 1, Mmax}]] returns {{-(4/\[Pi]^2), 16/(5 \[Pi]^2), -(12/(5 \[Pi]^2)), 32/( 17 \[Pi]^2)}, {0, 0, 0, 0}, {-(4/(65 \[Pi]^2)), 16/( 145 \[Pi]^2), -(12/(85 \[Pi]^2)), 32/(205 \[Pi]^2)}} as expected yehuda URL: ,

 Subject (listing for 'Piecewise defined for even and odd n') Author Date Posted Piecewise defined for even and odd n dustin 11/25/12 4:37pm Re: Piecewise defined for even and odd n yehuda 11/28/12 01:20am
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