2021-02-01 09:49:00 +0200 | asked a question | how to sum sums I am new to sagemath and I am trying to calculate some formulas using it. I learned how to write a sum such as However, I am having difficulties to write a sum for but I got error. I tried to use also it doesn't work. |

2020-12-03 11:01:45 +0200 | commented answer | counting number of matrices in finite field thank you so much for helping me you are the best :) |

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2020-12-02 20:21:13 +0200 | commented answer | counting number of matrices in finite field Thank you for answering my question. I am trying to count them on modules like M=matrix([[x1,x2],[x3,-x1]]) or M=matrix([x1,x2,x3],[x4,x5,x6],[x7,x8,-x1-x5]]) Is there a way where I can put the variables and make sage run them through GF(p) |

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2020-12-02 17:18:01 +0200 | asked a question | counting number of matrices in finite field I am new to sage and I want to count the number of matrices per rank in a given finite field. Example: M=matrix([[x1, x2, x3],[ x4,-x1, x5],[x6,x7,x8]]) in Z/3Z |

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