2021-07-29 15:17:44 +0200 | edited answer | Calculation with arbitrary precision You can first solve the integral symbolically : sage: i = integral(exp(-1/x)/x,x,0,1) sage: i -Ei(-1) You can get inf |

2021-07-29 14:59:40 +0200 | edited answer | multivariate polynomial ring over complex numbers It seems not implemented on the floating-point complex numbers, nor on the complex algebraic numbers: sage: R.<x,y&g |

2021-07-29 14:58:40 +0200 | edited answer | multivariate polynomial ring over complex numbers It seems not implemented on the floating-point complex numbers, nor on the complex algebraic numbers: sage: R.<x,y&g |

2021-07-29 14:57:11 +0200 | edited answer | multivariate polynomial ring over complex numbers It seems not implemented on the floating-point complex numbers, nor on the complex algebraic numbers: sage: R.<x,y&g |

2021-07-29 14:54:18 +0200 | edited answer | multivariate polynomial ring over complex numbers |

2021-07-29 14:53:44 +0200 | edited answer | multivariate polynomial ring over complex numbers |

2021-07-29 14:49:31 +0200 | edited answer | multivariate polynomial ring over complex numbers |

2021-07-29 14:11:53 +0200 | edited answer | Calculation with arbitrary precision You can first solve the integral symbolically : sage: i = integral(exp(-1/x)/x,x,0,1) sage: i -Ei(-1) You can get inf |

2021-07-29 14:10:04 +0200 | answered a question | Calculation with arbitrary precision You can first solve the integral symbolically : sage: i = integral(exp(-1/x)/x,x,0,1) sage: i -Ei(-1) Then, you can c |

2021-07-28 19:33:59 +0200 | received badge | ● Good Answer (source) |

2021-07-22 14:29:25 +0200 | commented question | TypeError: dist must be a Distribution instance You should provide more details on how to reproduce the issue. What is different with that ipynb file ? |

2021-07-22 09:08:29 +0200 | received badge | ● Nice Answer (source) |

2021-07-22 00:46:36 +0200 | answered a question | Only the most basic stuff needed How to Sage install on linux (maybe not needed, because it was installed) see https://doc.sagemath.org/html/en/insta |

2021-07-19 22:54:23 +0200 | commented answer | I want to display the origin on the graph. I edited my answer. |

2021-07-19 11:25:51 +0200 | edited answer | I want to display the origin on the graph. Could you please make your question more precise ? The origin is located at the intersection of the axes: sage: graph + |

2021-07-17 23:51:52 +0200 | received badge | ● Good Answer (source) |

2021-07-17 23:41:10 +0200 | commented question | AttributeError when load object (ideal and groebner basis) with numpy.load Could you please provide the whole code so that we can reproduce ? |

2021-07-16 18:56:09 +0200 | received badge | ● Nice Answer (source) |

2021-07-16 11:00:05 +0200 | answered a question | I want to display the origin on the graph. Could you please make your question more precise ? The origin is located at the intersection of the axes: sage: graph + |

2021-07-15 20:46:56 +0200 | received badge | ● Nice Answer (source) |

2021-07-14 21:39:35 +0200 | edited question | numeric precision unexpectedly low numeric precision unexpecedly low I try to integrate a probability density function over an fixed interval. Can't give |

2021-07-14 21:37:46 +0200 | answered a question | numeric precision unexpectedly low You should have a look at the expression test, wich is a very huge. Hence, when turned numerical, a lot of roundings acc |

2021-07-14 19:52:44 +0200 | edited answer | find the first power of $t$ with a non-positive coefficient You can use power series as follows: sage: q=4 ; m=33 ; k=31 sage: R.<t> = PowerSeriesRing(QQ) sage: f = ((1-t^q) |

2021-07-14 19:51:13 +0200 | answered a question | find the first power of $t$ with a non-positive coefficient You can use power series as follows: sage: q=4 ; m=33 ; k=31 sage: R.<t> = PowerSeriesRing(QQ) sage: f = ((1-t^q) |

2021-07-11 08:59:19 +0200 | received badge | ● Nice Answer (source) |

2021-07-10 16:57:59 +0200 | edited answer | Are symbols guaranteed unique ? As a general rule, i would recommend not to use the same term for symbols and polynomial indeterminates. Regarding your |

2021-07-10 16:55:28 +0200 | answered a question | Are symbols guaranteed unique ? As a general rule, i would recommend not to use the same term for symbols and polynomial indeterminates. Regarding your |

2021-07-09 18:28:24 +0200 | received badge | ● Nice Answer (source) |

2021-06-30 22:54:41 +0200 | commented answer | Is it possible for the spectrum() method to use all CPU cores? The way you did works for me, if i replace @parallel with @parallel(ncpus=8) |

2021-06-30 22:54:14 +0200 | edited answer | Is it possible for the spectrum() method to use all CPU cores? SInce you have to run the computation on various graphs, you can do some basic parallelism provided by the @parallel dec |

2021-06-30 22:51:51 +0200 | commented answer | Is it possible for the spectrum() method to use all CPU cores? The way you did seems to work for me. |

2021-06-30 22:51:30 +0200 | commented answer | Is it possible for the spectrum() method to use all CPU cores? It seems to work for me. |

2021-06-30 18:46:00 +0200 | answered a question | Is it possible for the spectrum() method to use all CPU cores? SInce you have to run the computation on various graphs, you can do some basic parallelism provided by the @parallel dec |

2021-06-30 01:56:45 +0200 | edited answer | Define matrix indexed by partitions I am not sure about the notation $\lambda'$ so let me assume that it is the conjugate. First, to build a matrix, you ha |

2021-06-29 21:48:31 +0200 | answered a question | Define matrix indexed by partitions I am not sure about the notation $\lambda'$ so let me assume that it is the conjugate. First, to build a matrix and to |

2021-06-28 18:43:07 +0200 | answered a question | Bug? Polynomial variable name matters Thanks for reporting, this is clearly a bug, i can reproduce it on latest Sage version 9.4.beta3, it is know tracked at |

2021-06-27 16:31:50 +0200 | edited answer | i doesn't belong to QQbar ? Why ? This is definitely a bug, thanks for reporting! As you can see in the source code: sage: QQbar.__contains__?? the tes |

2021-06-24 14:02:10 +0200 | answered a question | Error: unsupported operand type for ^ or pow(): 'list' and 'int' (Newbie) Square brackets are used to define lists, but you can nest parentheses: sage: pi_m = ((1+d)*g_1 + r*(1-d*mu)-c*d^2)^(2) |

2021-06-24 02:43:02 +0200 | edited answer | how can I manipulate a multiplicative group of Zmod(n) For those interested, there is a parallel discussion on that topic on sage-devel : https://groups.google.com/g/sage-deve |

2021-06-24 02:42:53 +0200 | answered a question | how can I manipulate a multiplicative group of Zmod(n) For those interester, there is a parallel discussion on that topic on sage-devel : https://groups.google.com/g/sage-deve |

2021-06-22 19:25:06 +0200 | answered a question | Error in finding cliques Apparently, the matrix A has some nonezero entries along the diagonal, which is not allowed for adjacency matrices. We c |

2021-06-22 19:23:25 +0200 | commented question | Error in finding cliques Could you please provide a way to fetch the 42-matrix-of-size-378.txt file so that we can see the actual issue ? If this |

2021-06-22 09:34:23 +0200 | answered a question | way to subs var by matrix in polynomial You can use one of the following: sage: p.subs({x:X,y:Y}) sage: p.subs(x=X,y=Y) The first passes a dictionary to the |

2021-06-21 21:18:36 +0200 | received badge | ● Nice Answer (source) |

2021-06-21 20:14:54 +0200 | answered a question | unexpected(?) conversion to float while raising an integer to power -1 This is the expected behaviour. When you type 29, the Sage preparser ensures that this number is considered as a Sage in |

2021-06-21 19:51:12 +0200 | answered a question | what happened on ask.sagemath.org ? The website https://ask.sagemath.org/ is currently hosted in the computer science lab of the university Paris north (a.k |

2021-06-18 20:45:02 +0200 | received badge | ● Nice Answer (source) |

2021-06-18 09:34:28 +0200 | answered a question | solve() Function Returns Input Equations When solve returns the original system of equations, it means that it was not able to solve it. solve relies on symbolic |

2021-06-17 09:02:03 +0200 | commented answer | How do you assign (different) LaTex names to elements of a list? Idem, use double braces around v. |

2021-06-16 22:13:49 +0200 | edited answer | How do you assign (different) LaTex names to elements of a list? You sould use double the braces as follows: v = {(i,j): var("v_{}{}".format(i, j), latex_name="v_{{{}{}}}".format(i, j) |

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