What the heck is this? series expansion

Question:What the heck is this? series expansion

Posted: digerdiga 390 Product: Maple 17

September 28 2013

While expanding a lengthy expression I get these in mein series expansion

ln(e)^4*cos(argument(e)/z)^2

I guess e is just exp(1) so why does maple not simplify it to 1 ?

and what shall arg(e) mean?

is it zero?

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