2021-09-19 23:55:26 +0100 received badge ● Popular Question (source) 2020-07-22 22:43:05 +0100 received badge ● Famous Question (source) 2018-06-17 19:34:31 +0100 received badge ● Notable Question (source) 2015-09-24 13:33:55 +0100 received badge ● Popular Question (source) 2012-11-26 19:59:40 +0100 asked a question bug in sqrt? This looks like a bug. sage: 1/sqrt(10) 1/10*sqrt(10)  On the other hand, sage: 1/sqrt(9) 1/3  works fine. 2012-11-11 00:41:27 +0100 commented question Bug in legend_label of list_plot? On the other hand, (X+Y).save('tmp.eps') displays the legend labels correctly. 2012-11-11 00:37:55 +0100 commented answer Bug in legend_label of list_plot? How do I circumvent this bug to get the legend labels right? 2012-11-10 23:48:53 +0100 answered a question Creating a polynomial ring where the variables are code generated Thanks for the answers. 2012-11-10 23:44:35 +0100 asked a question Bug in legend_label of list_plot? Hi, Suppose lstR and lstS are two lists of real numbers. X = list_plot(lstR, plotjoined = True, color='black', marker = 'o', linestyle="-", legend_label='$R$', axes_labels=['Trial number', 'Value']) Y = list_plot(lstS, plotjoined = True, color='black', marker = 's', linestyle="--", legend_label='$S$', axes_labels=['Trial number', 'Value']) (X+Y).show()  The legend label for R is two squares joined by a line instead of two circles joined by a line. Is this a bug? (I am unable to upload the plot image because my karma is not > 60.) 2012-11-06 10:31:28 +0100 received badge ● Supporter (source) 2012-11-06 09:41:09 +0100 received badge ● Editor (source) 2012-11-06 09:14:46 +0100 asked a question Creating a polynomial ring where the variables are code generated Hi, The standard way to create a multivariate polynomial ring over ZZ is as follows. sage: R. = PolynomialRing(ZZ)  I want to create a polynomial ring over ZZ where the variables are generated by code. sage: n = 5 sage: lstx = list(var('x_%d' % i) for i in range(n)) sage: lstx [x_0, x_1, x_2, x_3, x_4]  My attempts at creating the desired ring whose variables are the elements of lstx result in error. Any help will be appreciated.