exporting numerical data

*To*: mathgroup at smc.vnet.net*Subject*: [mg106642] exporting numerical data*From*: Very Bad Motherfucker <shinytinkerbell at googlemail.com>*Date*: Wed, 20 Jan 2010 06:46:23 -0500 (EST)

Hi, I have the following problem: I've created a table in mathematica that looks like this: TabIntegral={ {{m_1,k_1,F(m_1,k_1)},{m_1,k_2,F(m_1,k_2)},... {m_1,k_N,...,F(m_1,k_N)}} , {{m_2,k_1,F(m_2,k_1)},{m_2,k_2,F (m_2,k_2)},...,{m_2,k_N,F(m_2,k_N)}} , ... , {{m_N,k_1,F(m_N,k_1)}, {m_N,k_2,F(m_N,k_2)},...,{m_N,k_N,F(m_N,k_N)}} }; So something like an array of {x,y,F(x,y)} records. Now, I'd like to save this in human readable form in a file in such a way that I'd have three columns: m_1 k_1 F(m_1,k_1) m_1 k_2 F(m_1,k_2) ... m_1 k_N F(m_1,k_N) m_2 k_1 F(m_2,k_1) ... m_2 k_N F(m_2,k_N) ... m_N k_N F(m_N,k_N) I've tried like that: Export["TabIntegral.dat", TabIntegral, "Table"] but I got smth like this: {0, 0, 5.641587818867172*^-9} {0, 0.2271979480396873, 5.6073615530027356*^-9} {0, 0.4543958960793746, 5.503771348500282*^-9}... which is definitely not what I need. So now I guess my question is clear, how can I get what I need? The second question would be the following: as you see I have in my file small numbers such like 5.6073615530027356*^-9 that I'd like to read later on with a C-written program. If I'll leave it in this format as it is, there's no way C-program can read that. So how to write/format such small numbers while exporting to guarantee that I'll be able to C-read them later? Any help will be appreciated. Kind regards, -- tinkerbell