20190914 19:48:28 0500  received badge  ● Nice Answer (source) 
20190913 19:41:37 0500  answered a question  Sage is not preparsing Python 3 underscored integers Good point. Indeed, the preparser is not able to handle such litterals yet. This is now trac ticket 28490. 
20190913 11:47:37 0500  commented answer  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 Is everything working now ? 
20190913 11:40:38 0500  answered a question  Exploiting the results of an optimization If you put Regarding your second question, you can do: and it will look like what you want if you have Regarding your last question, you can get the value of 
20190913 11:37:02 0500  edited question  Exploiting the results of an optimization The code bellow work perfectly but if i get ride of show(), it doesn't display in LaTeX secondly I would like to display not Simply show(x1) but "x=show(x1)". How can I do that ? (The question continue after the code) Now yesterday some one shows me how to do the same thing with a dictionary how can I extact $x= solution$ and so on. 
20190913 11:33:26 0500  answered a question  Finite Fields: Basic Question When you write The Python name But the Python name If you want to get the generator of the field, you can do: So, if you want the Python name Now, Sage has some magic to do that, you could also do (it is very convenient for objects with several generators): Also, there is something else, which is convenient for mathematicians, but violates the Python language (there is a specific Sage preparsing behind the scenes), you can do: This defines both 
20190913 11:23:48 0500  commented answer  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 You have to do 
20190913 09:06:48 0500  received badge  ● Nice Answer (source) 
20190913 08:13:53 0500  edited question  degree versus in_degree I have a problem when calling degree and in_degree on directed graph I loaded. In particular, I had thought, for a particular node, that degree = in + out degree but am getting a situation where in_degree > degree for a given node. Here is the output for a graph I loaded: This is also the case for other nodes in the graph. Any idea what's going on here? thanks! David 
20190913 05:49:11 0500  answered a question  Memory leak with matroid is_connected() method I can not reproduce you problem, you should provide more details, see: 
20190913 05:33:21 0500  answered a question  More physics constants in Sagemath As explained in the doc you provided, this constant appears in the constant database, so you can do: So you can do something like: 
20190913 04:29:50 0500  answered a question  How to Latexprint matrices as a bold uppercase letter? Ragarding the first question, you should understand that when you write:
Here So, if you want to type We can define a function that finds one of the Python names of the matrix object within the You have: But of course: Regarding the second question, it is a bit different, since the symbolic variable knows a string reprentation of itself, and you can even tune a latex one as follows: 
20190913 03:35:57 0500  answered a question  SageAppliance not more maintained after 8.1? Volker (the current release manager of Sage) used to build this on his laptop, so perhaps he just stopped to do so since there is now the cygwin build, see https://groups.google.com/forum/#!top... Let me ask for more details. 
20190913 03:27:39 0500  answered a question  Sage Math can't find pandoc on MacOS Mojave I am not a mac user, but the error you get about pandoc is weird since it should be sufficient that it is on your path. Regarding latex, note that you need 
20190912 15:06:53 0500  commented question  degree versus in_degree There might be a bug, could you please provide the code for 
20190912 15:01:10 0500  commented question  3 questions in one about exploiting the result of an optimization You can try again. 
20190912 15:00:46 0500  answered a question  3 questions in one about exploiting the result of an optimization Regarding 1, see the answer of https://ask.sagemath.org/question/478... Regarding 2, which factorization would you expect ? Regarding 3, you ar lucky because in the tree of the representation of the expression, Regarding 4, if you are using jupyter notebook, you can add the following in the first cell: 
20190912 14:52:58 0500  edited question  3 questions in one about exploiting the result of an optimization This is an incredible result of SageMath since one is obliged to help Mathematica to obtain the result But I would ameliorate the presentation : 1) How can I substitute greek $\lambda$ to l in the code ? 2) The final result should be simplified because there are possible factorizations ? 3) How can I, without rewriting, all the code add the hypothesis $\alpha+ \beta =1$ ? 4) how to have the results automaticaly written in LaTeX without using show() A great hand shake for the one who will help me on those maters. 
20190912 14:48:22 0500  commented question  Optimization under constraint I bet 
20190912 14:47:25 0500  answered a question  Optimization under constraint Regarding 1., it is not possible to use unicode λ in variables names, since Sage relies on Python 2, which does not allow it, so you have to wait the migration of Sage to Python 3 for that. Regarding 2, you can use the You can pass a dictionary for substituting: 
20190912 14:41:24 0500  edited question  Optimization under constraint Here is an incredible powerfull solution of a constrained optimization that Mathematica cannot solve without help Now I have two questions in one :

20190912 14:26:56 0500  commented answer  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 The thing is that Sage is still using Python2.7 while most disto moved to Python 3 by default. Soon, Sage will be Python 3, but meanwhile, you have to install Python 2.7 from the distro. Don't worry, your distro supports having both Python installed at the same time. 
20190912 10:18:47 0500  commented answer  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 Indeed ! It has been a very long time that i did not install Sage from binaries, but you might also have to install gfortran and openssl, let us see with further errors. 
20190912 07:39:40 0500  commented answer  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 Don't give up, you are not so far, you should type 
20190912 04:15:36 0500  commented answer  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 Yes you can, it is really up to you as long as you do not do that as root, but I would suggest to unpack the tarball in a dedicated directory, like "~/sage".or whatever Note that once you unpack and run 
20190912 04:15:17 0500  received badge  ● Nice Answer (source) 
20190911 18:31:42 0500  answered a question  installing sage8.8Ubuntu_18.04x86_64.tar.bz2 You seem to be doing contractictoty things:
Which Sage do you want to install ? If you want to install six, you should do that as a normal user, with the command 
20190910 15:33:58 0500  received badge  ● Nice Answer (source) 
20190910 13:06:06 0500  commented answer  Substitution of free variable Yes, but you might have to do some assumption on their order i guess. 
20190910 12:39:35 0500  answered a question  Substitution of free variable If you are sure that there is only one free variable, then you can easily identify it. First, use Now, you can ask for the variables appearing in a symbolic expression, see: So, you can give it a Python name and use it afterwards: 
20190910 09:34:16 0500  answered a question  Wehre can i download maxima? I am not sure how it is related so Sage, but the download URL is http://maxima.sourceforge.net/downloa... That said, maxima is shipped with Sage, so if you want to run it without a dedicated download, you can do: 
20190910 06:58:49 0500  answered a question  How to reuse value from interact? You can try with global variables, something like: Cell 1 Cell 2 Cell 3 