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2015-01-15 07:42:14 +0100 | asked a question | what does ratpoly.<t> = PolynomialRing(QQ) mean In official tutorial, I see the following command: I have python backgroud. I wonder what does it do and how it is implemented. After all, variable |

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2015-01-14 06:27:28 +0100 | commented answer | why don't sage return exact value in some functions so is it possible to get a (z-sqrt(2))*(z+sqrt(2))? |

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2015-01-14 04:31:08 +0100 | asked a question | why don't sage return exact value in some functions Look at the following code: it returns: why don't sage return and how can i make it to do that? |

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