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2019-05-04 17:42:38 +0200 | asked a question | MatrixSpace quotientRings I'm trying to work with a quotingring of a matrix space. Now I use the following code. But since $n$ is my modulus I expect my second matrix to be equal to $M_1$ in this quotient ring. But it's like its just ignoring the fact that its a quotient ring and it does every computation in MS. What am I doing wrong or is my understanding of quotient rings flawed? Thanks in advance. this code gives this as a result |

2019-05-04 17:41:57 +0200 | asked a question | Matrix quotient rings I'm trying to work with a quotingring of a matrix space. Now I use the following code. But since $n$ is my modulus I expect my second matrix to be equal to $M_1$ in this quotient ring. But it's like its just ignoring the fact that its a quotient ring and it does every computation in MS. What am I doing wrong or is my understanding of quotient rings flawed? Thanks in advance. |

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2017-05-03 16:17:51 +0200 | commented question | converting linear map to matrix representation p=5 Now I want to get the coeffecients of s represented to the base V[i], how do i do that |

2017-05-02 23:13:58 +0200 | asked a question | converting linear map to matrix representation I have a linear map $\alpha$ from $F_{p^n} \longrightarrow F_{p^n}$, where we see $F_{p^n}$ as a vector space over $F_p$ with a $V_i$ as base elements. I want to create the matrix representation for $\alpha$. For that I have to calculate $\alpha(V_i)$ and then write it in the basis $V_i$ to get my values for the matrix. How exactly do I do the last in sage ? For eg. a polynomial ring it's easy because the elements are already written according to its base but in general thats not the case... |

2017-04-29 19:39:32 +0200 | asked a question | field extension not implemented I'm trying to construct some field extenstions of GF(p), this is what I have It creates F3 like it should but it doesn't create F4. I get a NotImplementedError... What did I do wrong? |

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2017-04-29 15:42:59 +0200 | commented answer | Chain of fields in sage I have to construct a chain like that, with 5 different elements. When i use the extend function for the 4th time it gives "NotImplementedError"... |

2017-04-28 21:46:46 +0200 | asked a question | Chain of fields in sage I would like to construct the field Fp(alpha,beta) where alpha is a root of x^p-x-1 (over Fp[x]) and beta is a root of the polynomial x^p-x-alpha^(p-1) (over Fp(alpha)[x]). I have tried the following but I think it creates the field F1 well, but it goes wrong for R2... It also feels like there should be a much more straightforward way to do this in sage. What would be the proper way to do this ? |

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2014-12-05 16:14:56 +0200 | asked a question | AttributeError: must give both plot endpoints I use this piece of code in my project: and this is my output: Why does this happen ? I have specified my endpoints right? so why is it saying I didn't ? I tried a lot to solve this but i can't get it solved.. anyone who can tell me whats wrong ? Thanks in advance |

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2014-11-15 12:08:18 +0200 | asked a question | Solving an equation in multiple variables I have this equation :
sqrt((b-a)^2 + (B-A)^2) == A+B and i would like to have it solved to b-a=+- 2 * sqrt(AB) in sage. Right now I have the following code but it doesn't really output what I want. I just get my code: var('a,b,c,A,B,C') Thanks in advance |

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