Following the section "symbolic maths" in the quickstar of sagemath's web page I put
sage: f=1-sin(x)^2
If I write Print(f) it works fine, but when I do the "pretty printing" :
sage: print(maxima(f))
I get
1-sin²(_SAGE_VAR_x)
instead of $$1-sin²(x)$$
which the quickstart says I should get. Why I am printing "_sage_var_x" and how can I replace it by just $x$?
