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2012-04-11 15:49:47 +0200 | commented answer | Using polynomial over matrices Thanks ! That was quite tricky... |

2012-04-11 15:49:18 +0200 | marked best answer | Using polynomial over matrices The problem is just with Matrix_space doesn't have one, but you can give it one easily: Note that things will still print in silly ways, because matrices always print a linebreak after printing the top row: You can still work with polynomials and print their coefficients without defining |

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2012-04-11 14:05:12 +0200 | asked a question | Using polynomial over matrices Things goes wrong when I try to define polynomial ring over a matrix algebra. When I type I obtain the following error : Of course, I could use matrices over polynomial rings, but I would loss generality of the code... Do you have any idea ? |

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