I have used texput to set the tex1 output of log(x) to be \ln(x) with
texput('log, lambda([e],[a]:args(e), printf(false, "\\ln(~a)", tex1(a))));
and am wondering if it is possible to also set the output for something like (log(x))^n? In particular I'd like to use the \ln^n(x) convention.
The strangeness around TeX output for log is a bug, which I'm working on. But here is a work around which gets the behavior you want, I think.
Here I'm calling both texput(log, "\\ln ") and texput(log, "\\ln ", prefix), to set the TeX output for log in different contexts, and also :lisp (push log *tex-mexpt-trig-like-fns*) to have log treated similarly to trig functions.
(%i1) stringdisp: true $
(%i2) map (tex1, [log(x), log(x+1), log(x)^n]);
(%o2) ["\log x", "\log \left(x+1\right)", "\left(\log x\right)^{n}"]
(%i3) texput (log, "\\ln ");
(%o3) "\ln "
(%i4) texput (log, "\\ln ", prefix);
(%o4) "\ln "
(%i5) map (tex1, [log(x), log(x+1), log(x)^n]);
(%o5) ["\ln x", "\ln \left(x+1\right)", "\ln x^{n}"]
Hmm, that's not quite enough. Oh, that's right, I forgot the bit about trig functions.
(%i6) :lisp (push '%log *tex-mexpt-trig-like-fns*)
(%LOG %SIN %COS %TAN %SINH %COSH %TANH %ASIN %ACOS %ATAN %ASINH %ACOSH %ATANH)
(%i6) map (tex1, [log(x), log(x+1), log(x)^n]);
(%o6) ["\ln x", "\ln \left(x+1\right)", "\ln ^{n}x"]
Does that seem right?