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Questions related to the calculus and analysis branches of Mathematica, including, but not limited to, limits, derivatives, integrals, series, and residues.

19 votes
5 answers
1k views

BSplineFunction derivatives wrong if using weights?

Bug introduced in 7.0 and persisting through 12.0 or later In my work, I make heavy use of non-uniform rational B-spline (NURBS) functions, defined using the function BSplineFunction[] with the opt …
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