20170721 16:45:30 0500  commented question  How to plot a complicated function in Sage Math My bad I thought it was abs(x) instead of floor(x) 
20170701 17:51:28 0500  commented question  How to plot a complicated function in Sage Math So do you want to plot a function which is 1 for x>=0 and +Infinity for x<0? 
20170417 08:47:01 0500  received badge  ● Supporter (source) 
20170414 03:06:12 0500  received badge  ● Teacher (source) 
20170413 22:07:09 0500  answered a question  Launch Sage Notebook directly from linux menu I found the solutions above way too slow. I have all my sagemath notebooks on a sagemathNB folder in Documents. In my ~/bin I created a script called sage_nb Remember to Finally you can copy to 
20170401 07:05:37 0500  received badge  ● Scholar (source) 
20170331 19:23:12 0500  asked a question  weird behavior of set and uniq Hi all, I have a list of coefficients (which are variables) and I want to remove duplicates. In my original file (from May 2015) I could use set and or unique now both of them give me the same error Whenever I try to use the same commands with another list I don't have any error. I'm still scratching my head. here is the notebook. I don't have enough karma to publish a link cloud.sagemath.com/projects/263f082fdc104817a88dd87700640552/files/Ask+sage.html 
20160423 06:39:09 0500  commented question  Assume that n is positive integer It is pretty weird. If you type The command returns and returns false. But if you assume the other way around then returns true. I guess it's a sort of bug 
20160423 06:39:08 0500  commented answer  Fast show()? (for cached plots for @interact) Do you know if things are changed right now? I can't load the module Image. 
20150523 17:39:21 0500  answered a question  what is the command for unzipping a folder in sagemathCloud Open a terminal and use linux commands: 
20150523 17:37:51 0500  answered a question  Matrix/Tensor derivative for Stress Tensor Have you tried SageManifolds? sagemanifolds.obspm.fr I do tensor calculus with it and I think it's good. Then as Juanlu001 already told you try to use diff and post your code. 
20150517 07:31:48 0500  commented answer  Solving a symbolic inequality In the first case your solution is fine:
But I would like to know if there is a way to have a solution without "trying to understand" where the sign change. I think is the main point to use a math software. Furthermore it'll be pretty annoying if there is anything like that implemented already as with Mathematica is a one line command
