       PolynomialMod

• To: mathgroup at smc.vnet.net
• Subject: [mg121334] PolynomialMod
• From: Artur <grafix at csl.pl>
• Date: Sun, 11 Sep 2011 07:28:34 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com

```Dear Mathematica Gurus,

Who is able help me to write Mathematica procedure which will be
improovment of recent PolynomialMod.

If we do
PolynomialMod[ 1 + 3 #1 + 5 #1^2 + 5 #1^3 + 5 #1^4 + 3 #1^5 + #1^6, -1 +
2 #1^2 + #1^3]
result is OK
1 + 6 #1 + 6 #1^2

But if we do
PolynomialMod[1 + 3 #1 + 5 #1^2 + 5 #1^3 + 5 #1^4 + 3 #1^5 + #1^6, -1 +
(-(3/2) - (I Sqrt)/2) #1 + (3/2 - (I Sqrt)/2) #1^2 + #1^3]
Result is wrong
good should be
-2 + (-(1/2) - (I Sqrt)/2) x + x^2

Who is able to write good one procedure e.g. PolMod to automatic
reduction of any degree polynomials by polynomial smaller degree?

Best wishes
Artur Jasinskii

```

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