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I am trying to format a long equation with an overly long LHS, namely:

\hat{N}_{A1}(c_A + \hat{N}_{A1})^2 + \hat{N}_{A1}^2a_A(c_A + \hat{N}_{A1})^2 + \hat{N}_{A1}^2b_A(c_A + \hat{N}_{A1}) & = & \hat{N}_{A1}a_B^2a_A^2c_A(c_A + \hat{N}_{A1})^2

I tried to use the \IEEEeqnarraymulticol command with 3 columns merged into one, left justified like this:

\hat{N}_{A1}(c_A + \hat{N}_{A1})^2 + \hat{N}_{A1}^2a_A(c_A + \hat{N}_{A1})^2 + \hat{N}_{A1}^2b_A(c_A + \hat{N}_{A1})
}\\ \quad & = & \hat{N}_{A1}a_B^2a_A^2c_A(c_A + \hat{N}_{A1})^2

But I get the error:

"Class IEEEtran Error: Invalid column type "1" in in \IEEEeqnarraymulticol.

Any suggestions on how to make IEEEtranstools recognize this column type? FYI, it doesn't work with column type "2" or "3"...

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closed as too localized by egreg, David Carlisle, mafp, Claudio Fiandrino, Thorsten Mar 22 '13 at 10:35

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

You should have l ("ell") and not 1 (one) in the second argument to \IEEEeqnarraymulticol – egreg Mar 22 '13 at 9:41
Ahha, thanks a lot! – Scott Brainard Mar 22 '13 at 10:03
I hope you don't mind if I'll vote for this question to be closed, in order to keep the site as tidy as possible. This is not a judgment on your question; feel free to pose new ones. – egreg Mar 22 '13 at 10:07

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