See also: syms, assumptions, sym/assume, sym/assumeAlso. The underlying SymPy string representation (srepr) can usually be passed directly to sym: see ‘sym/char’ for discussion of the details. #lines.linewidth: 1.5 # line width in points #lines.linestyle: - # solid line #lines. It is also possible to save sym objects to file and then load them when needed in the usual way with the save and load commands. Text rendering with XeLaTeX/LuaLaTeX via the pgf backend.Customizing Matplotlib with style sheets and rcParams.Understanding the extent keyword argument of imshow.Tight layout guide (mildly discouraged).Writing a backend - the pyplot interface.Interactive figures and asynchronous programming.Matplotlib Application Interfaces (APIs).