[GiNaC-list] series of x^n around x=0

[Vladimir V. Kisil]

>>>>> On Thu, 19 Dec 2019 09:59:19 +0000, Feng Feng <f.feng at outlook.com> said:
  > Hi all,
  > I got a question while using series on x^n with n a non-integer.
  > here is an example:
  > ------
  > symbol x("x");
  > ex expr = pow(x, ex(3)/2);  // 3/2 may be a general non-integer
  > cout << expr.series(x,2) << endl;
  > ------
  > The output is: Order(x^2)
  > so is there a way to handle this?

  Note, that series expansion of x^(3/2) at x==0 is not well-defined in
  mathematical sense. GiNaC signals this by throwing pole error at
  expr.series(x,3).

  Thus it is not clear what do you mean by "is there a way to handle
  this?"
-- 
Vladimir V. Kisil                 http://www.maths.leeds.ac.uk/~kisilv/
  Book:     Geometry of Mobius Transformations     http://goo.gl/EaG2Vu
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