2021-03-13 06:10:39 +0200 answered a question Crash when plotting in Sage in Windows I am also facing the same difficulties. Till recently, it was working fine. I uninstalled and installed few times, even 2020-01-13 22:39:19 +0200 received badge ● Notable Question (source) 2018-10-11 03:56:28 +0200 answered a question How to install database_gap I am using Linux Operating System (Linux Mint 18.1) 64 bit. Have Sage 8.1 installed by unzipping the sage-8.1-Ubuntu_16.04-x86_64.tar.bz2 in my ssytem. Thanks Ajit 2018-10-10 14:26:45 +0200 asked a question How to install database_gap I have sage installed from pre-installed Sage binary. I wish to use function from the package "database_gap" When I issue a command sage -i database_gap It gives me an error make: * No rule to make target 'all-toolchain'. Stop. Can someone help me? Thanks 2018-10-02 11:13:48 +0200 commented answer How to create a morphism between a permutation groups and a matrix groups by explicitley giving the map? Thanks, I shall wait for someone to resolve this issue! 2018-10-02 02:43:43 +0200 received badge ● Popular Question (source) 2018-10-02 02:20:02 +0200 asked a question How to create a morphism between a permutation groups and a matrix groups by explicitley giving the map? I looking to define a homomorphism between a permutation group to another permutation group by defining the map explicitly. Same between matrix groups? Can some body help? For example The following codes gives an error sage: G = SymmetricGroup(5) sage: r = G('(1,3,5,2,4)') sage: s = G('(2,5),(3,4)') sage: H = G.subgroup([r,s]) sage: D = DihedralGroup(5) sage: (a,b)= D.gens() phi = PermutationGroupMorphism(H,D, [a,b]) phi(x)  2015-08-20 03:41:26 +0200 received badge ● Taxonomist 2015-05-19 10:38:31 +0200 asked a question 'negative number to a fractional power not real' while computing inegral Hi I want to compute the following integral: B=40 Ef=1.13*10^(-18) KT=4.03*10^(-21) mu=1.732*9.27*10^(-24) f(t)=(sin(t)*(cos(t))^(3/2))/(exp((B*mu*cos(t)-Ef)/KT)+1) numerical_integral(f,0,pi)  However, it gives me an error "Exception ValueError: ValueError('negative number to a fractional power not real',) in 'sage.gsl.integration.c_ff' ignored"  Can somebody resolve this? Thanks and regards Ajit Kumar 2015-05-19 10:35:43 +0200 asked a question 'negative number to a fractional power not real' while evaluating integral I want to evaluate the following integral. B=40 Ef=1.1310^(-18) KT=4.0310^(-21) mu=1.7329.2710^(-24) f(t)=(sin(t)(cos(t))^(3/2))/(exp((Bmu*cos(t)-Ef)/KT)+1) numerical_integral(f,0,pi,eps_rel=1e-20) Howver, it gives " Exception ValueError: ValueError('negative number to a fractional power not real',) Can somebody help? Ajit Kumar 2014-01-14 06:46:12 +0200 received badge ● Student (source) 2014-01-11 14:17:07 +0200 asked a question How to fill region between two graphs using different styles or patterns? How to fill region between two graphs using different styles or patterns? 2013-07-23 23:11:14 +0200 commented answer How to mention point style in plot2d option? Thats correct! Thanks for you response. 2013-07-21 08:40:04 +0200 asked a question How to mention point style in plot2d option? How to mention point style in plot2d option? 2013-06-18 23:25:29 +0200 asked a question Axis in 3D Plot Is it possible to plot coordinate axes and not boxed in 3d plot in sage? I have been looking for this but have not succeeded yet and as result one has to plot coordinate axes separately like one in http://ask.sagemath.org/question/1441.... Ajit Kumar