limit(atan(sqrt(x))/sqrt(x),x,0) => und
correct answer is 1
limit(...,plus) correctly gets 1
limit(...,minus) gives noun form
tlimit gets the correct answer
You might think that limit is being particularly (overly)
careful about the imaginary case, but peculiarly, atan(b^
(3/2))/b^(3/2), which should have the same issues,
gives the correct answer!
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