On Wed, Feb 1, 2023 at 7:38 PM parisse <bernard.pari...@ujf-grenoble.fr> wrote: > > The antiderivative returned by giac (and by maple) for floor(x)^2 is only > piecewise continuous and this is expected. But both CAS implement additional > code to check for non continuous antiderivative (in simple situations for > giac), and they correctly evaluate integrate(floor(x)^2,x,0,3/2) to 1/2. For > definite integration without parameters, giac also checks that the exact > answer matches a numeric value using approximate algorithms. >
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