Hot answers tagged expression-manipulation
This expression, designated exp for convenience, can be simplified substantially as follows. num = Map[FullSimplify[#] &, Numerator[exp]]; Map[FullSimplify[#, θ[_] ∈ Reals && ϕ[_] ∈ Reals] &, Denominator[exp] /. Abs[z_]^2 :> FullSimplify[Abs[z]^2, θ[_] ∈ Reals && ϕ[_] ∈ Reals]; /. Abs[z_]^2 :> z^2] den = ...
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