PadeApproximant

PadeApproximant[expr, {x, x0, {m, n}}]
gives the Padé approximant to expr about the point , with numerator order m and denominator order n.

PadeApproximant[expr, {x, x0, n}]
gives the diagonal Padé approximant to expr about the point of order n.

DetailsDetails

  • Mathematica can find the Padé approximant about the point only when it can evaluate power series at that point.
  • PadeApproximant produces a ratio of ordinary polynomial expressions, not a special SeriesData object.
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