Max Alekseyev on Tue, 04 Jan 2022 18:17:04 +0100

 converting a multivariate series to a polynomial

• To: pari-users@pari.math.u-bordeaux.fr
• Subject: converting a multivariate series to a polynomial
• From: Max Alekseyev <maxale@gmail.com>
• Date: Tue, 4 Jan 2022 12:16:24 -0500
• Delivery-date: Tue, 04 Jan 2022 18:17:04 +0100
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While it is easy to convert univariate t_SER to t_POL by calling Pol(), I'm puzzled on what would be the easiest way to convert a multivariate series like

((((x5 + O(x5^10))*x4 + O(x4^10))*x3 + O(x3^10))*x2 + O(x2^10))*x1 + O(x1^10)

to a polynomial, which is x5*x4*x3*x2*x1 in this example.

Thanks,
Max