## 90 Reputation

7 years, 245 days

## Thank you very much....

Thank you very much.

## @Kitonum Thanks you....

@Kitonum Thanks you.

## @John Fredsted  Thank you....

@John Fredsted  Thank you.

@vv  Thank you.

## @Kitonum Thank you....

@Kitonum Thank you.

## @taro But getCoeff(f,a^2) is wrong....

@taro But getCoeff(f,a^2) is wrong.

## @Kitonum Great, thank you very much...

@Kitonum Great, thank you very much.

## @John Fredsted Great, thank you ver...

@John Fredsted Great, thank you very much.

## @John Fredsted But createDegree(L,3) do ...

@John Fredsted But createDegree(L,3) do not return my result.

## @John Fredsted Great, thanks you ve...

@John Fredsted Great, thanks you very much.

## @John Fredsted Sorry Sir, I typed the wr...

@John Fredsted Sorry Sir, I typed the wrong, sgm() is per() and I have edited.

For

ds := [(a-b)^2, (a-c)^2, (a-c+b)^2, (2*a-b-c)^2]

then permUnique(ds) return [(a-b)^2, (a-c)^2, (a-c+b)^2, (2*a-b-c)^2] but it's wrong because (a-b)^2, (a-c)^2 in per((a-b)^2). The true result is [(a-c)^2, (a-c+b)^2, (2*a-b-c)^2]  or [(a-c)^2, (a-c+b)^2, (2*a-b-c)^2].

Thanks you very much.

## @John Fredsted Thanks you sir, here'...

@John Fredsted Thanks you sir, here's what i need but if

ds := [(a-b)^2, (a-c)^2, (a-c+b)^2, (2*a-b-c)^2]

then return [(a-b)^2, (a-c)^2, (a-c+b)^2, (2*a-b-c)^2] but (a-c)^2 in per((a-b)^2). How to improve it.

## @Carl Love Thanks you....

@Carl Love Thanks you.

## @Kitonum Thanks you very much....

@Kitonum Thanks you very much.

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