How do I solve this?

Many thanks.

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- Nov 5th 2011, 09:39 AMBabyMiloImaginery Number with tanh
How do I solve this?

Many thanks. - Nov 5th 2011, 10:16 AMPlatoRe: Imaginery Number with tanh
I will give you the basics here.

$\displaystyle \tanh(w)=\frac{e^w-e^{-w}}{e^w+e^{-w}}=\frac{e^{2w}-1}{e^{2w}+1}$