does not uniformly substitute the Greek symbol for theta on the output. (image attachment 1)
If one substitutes the symbol t, for theta, there is an error:
defint: variable of integration cannot be a constant; found true (image attachment 2)
If one substitutes the Greek symbol for tau for t, then and only then does it work correctly, but why doesn't tau require the %sign?
These three situations should behave identically, but they don't.
Further Greek symbols should uniformly require escape with % and they should be case sensitive. as in:
Gamma; gamma; %gamma; float(%gamma); float(Gamma); float(gamma);
producing image attachment 4.
when they should produce image attachment 5.
build_info(version="5.30.0",timestamp="2013-06-01 21:29:43",host="i686-pc-mingw32",lisp_name="GNU Common Lisp (GCL)",lisp_version="GCL 2.6.8")