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2012-05-08 17:29:13 +0100 | marked best answer | Function in GF(16) I have no idea of what you are asking or what you are trying to compute. But if you define Using |

2012-05-08 17:29:04 +0100 | received badge | ● Scholar (source) |

2012-05-08 17:29:04 +0100 | marked best answer | Function in GF(16) How about this. I'll leave it as an exercise to handle the divide by zero: (more) |

2012-05-08 17:28:49 +0100 | answered a question | Function in GF(16) Thank You for help:) I'll do this exercise. |

2012-05-08 16:55:48 +0100 | answered a question | Function in GF(16) Maybe You are right, so I'll write it more clearly (I hope). Let
Let
where c is constant in GF(16) (for example c=a^2+a). Convention: if x=0 then y/x=0 (custom_divide). Now I want to calculate all values of the function T: I've to define this function T with this constant c. |

2012-05-08 15:29:07 +0100 | asked a question | Function in GF(16) Hi, I've one problem in the following task. My calculations: I'm defining following function: Next, I'm calculating all possible values in GF(16) for the function T: I know that then this constants will be equal to the variable How can I correct my code? I'll be grateful for any help in this task. |

2012-04-15 17:11:14 +0100 | asked a question | Trace function over GF(q) Hi, I understand the idea of defining functions over GF(q) which You explained me very precisely. Now I have following problem: I want to define the function:
Let (for example) d=3. With convention that 1/0=0 (y/0=0), I want to see what values this function f receives. How can I do this in SAGE? What I did (with Yours help): I'm stopped here because I'm not sure how can I define such function f. Any help/advices will be highly appreciated. I could write more details if something is not clear. Best regards, Arczi |

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2012-04-09 17:13:10 +0100 | answered a question | Define function in GF(q) Hi, Thanks for the answer. Yes, it helps:) Regards |

2012-04-06 11:08:12 +0100 | asked a question | Define function in GF(q) Hi, First of all I say that these are my first steps in SAGE. I want to define a function f(x,y), where x,y in GF(q), q=2^3 and next check all possible values of this function (for all x,y in GF(q)). If it will be necessary I'll write more details about function f. Could you give me some advices how can I do it in SAGE? Any help will be highly appreciated. I wish you a very happy Easter! Best regards, Artur |

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