Hi, if you see:(adsbygoogle = window.adsbygoogle || []).push({});

cosh kx (1 + i),

do you consider the (1 + i) to be multiplying the cosh or inside the cosh ?

i.e.

cosh kx (1 + i) = (cosh (kx))*(1 + i)

or

cosh kx (1 + i) = cosh ((kx)*(1 + i))

I saw this in a thermoconductivity bible from the 50's written by a really smart guy, so there must be some standard to this notation. I suspect it is the latter, but need to be 100% sure.

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# Hyperbolic function notation

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