numpy.polyint — NumPy v1.22 Manual
numpy.org › doc › stablenumpy.polyint(p, m=1, k=None) [source] ¶. Return an antiderivative (indefinite integral) of a polynomial. Note. This forms part of the old polynomial API. Since version 1.4, the new polynomial API defined in numpy.polynomial is preferred. A summary of the differences can be found in the transition guide.