Thanks, that does work. After (re-)implementing it I remembered why I
didn't use latex_name--it doesn't seem to pickle:
sage: logr = SR.symbol('logr', domain='complex', latex_name=r'L_{x/x_0}')
: latex(logr)
L_{x/x_0}
sage: import pickle
: path_name = '/home/mark/'
: pickle_file_name
sage: x = SR.symbol('x')
: x_0 = SR.symbol('x_0')
: logr = SR.symbol('L_x/x_0')
: logr_ex = logr == log(x/x_0)
: latex(logr_ex)
: latex(logr_ex.solve(x)[0])
L_{\mathit{x/x}_{0}} = \log\left(\frac{x}{x_{0}}\right)
x = x_{0} e^{\frac{L_{x}}{x_{0}}}
The above attempt at using a sy
