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2018-09-15 23:50:41 +0200 | asked a question | How to load local PARI/GP script in Sage notebook? I have a PARI/GP script which I want to load and run locally on my laptop inside a Sage notebook. I tried to open a new notebook in the same directory where my script is located, and run this: But, it throws the following error:
Please note that I'm using Sage 8.3. How can I run a PARI/GP script locally? |

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2018-03-05 18:41:24 +0200 | commented question | How to plot similarity of two data sets in Sage? @j.c. Yes, |

2018-03-05 16:35:11 +0200 | asked a question | How to plot similarity of two data sets in Sage? I'm performing some simulations, and at the end I have a CSV file with three columns. One column holds the values for the x-axis, which was also input to the simulation and theoretical calculations, second one holds theoretically expected values, and the other column holds the values obtained by the simulation. I was planning to plot something like this: But that does not look good in my case, as the values in y-axis normally double, and the values for the x-axis exponentially increase, so most of the points end up getting collected at the lower left part, near the intersection of x-axis and y-axis of the plot. Therefore, I need a different way to plot such data, which will be more visually appealing and inform how close the simulation results are to the theoretical expected ones. For example, some of my values can be seen below: What is a good way to plot such a data that doubles in the y-axis and exponentially increases on the x-axis all the time, and to view how similar the two datasets actually are? |

2018-03-04 17:28:19 +0200 | asked a question | How to specify x and y axis values in Sage plot? So, I have three lists in Sage, and I want to combine two list plots, where in one of them I have the expected values, and in the other one I have the simulation results, and the third one is the x-axis values that corresponds to these points. So my lists (all same size), look like this: Now, this creates a plot, and the y-axis corresponds to the values in |

2018-03-04 14:44:33 +0200 | commented question | Getting all non-backtracking walks of certain length in isogeny graph @David Coudert Well, as you may know for every isogeny $\phi : E_0 \to E_1$ there is also a dual isogeny $\hat{\phi} : E_1 \to E_0$, so I basically do not want to walk back in the graph, therefore, inside the |

2018-03-04 14:42:10 +0200 | commented answer | Removing files in Sage shell using pattern matching Thanks, this seems to work nicely! |

2018-03-03 23:29:45 +0200 | asked a question | Removing files in Sage shell using pattern matching I have a Sage project with includes some files ending in So, simply, when someone calls |

2018-03-03 18:41:07 +0200 | edited question | Getting all non-backtracking walks of certain length in isogeny graph I want to calculate all non-backtracking walks of certain length in a supersingular isogeny graph using Sage. Currently, I have a code segment that looks like this: We know that there are $(\ell_A + 1)\ell_A^{e_A - 1}$ non-backtracking walks, so for the above values of |

2018-03-03 18:20:36 +0200 | marked best answer | Is it possible to speed up loop iteration in Sage? I have a sage code that looks like this: So basically, I want to create very large number of random integers in the given range, check whether the number was already in the dictionary, if yes increment its count, if not initialize it to 1. But, this takes such a long time that it doesn't finish in a reasonable time. Is there any way to speed up this kind of loops in Sage (or Python)? |

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