# What advantages do Tcl/Tk offer while using sage?

I am planning to install sage in Ubuntu 10.04. I need to know if installation of Tcl/Tk is absolutely necessary or is optional for use of sage. (The associated FAQ does not clearly state that.) I have not used python earlier so I am confused. The reason I am interested in installing sage is that I will often need to solve differential equations numerically and save the output plot in ps/eps/pdf format so that I can use this in latex input file. I may need to get help with other jobs like evaluating complicated integrations etc. So should I install Tcl/Tk or can I skip it?

I don't have an answer for you, but your use case suggests that you might find SageTeX useful - http://www.sagemath.org/doc/installation/sagetex.html, among other places.