I am always using the packages times (actually: times-itsc from here in order to get italic small-caps) and txfonts. I use txfonts for the \coloneqq (:=) symbol. My loading order has traditionally and habitually been times-itsc -> amsmath -> textcomp -> upgreek -> txfonts. (I'm mentioning the middle three here just in case it matters for the answer; of course I'm loading many more packages around and in between.)
- I recently heard about the
newtxtext/newtxmathpackage. Is the idea that I, simplifying somewhat, just replacetxfontswith it, and that's it? - Just now I notice that
newtxtextis for text and thattxfontswas already for much more than just some extra symbols (I originally included this in my package repertoire simply for the\coloneqqsymbol). Should I in my current setup or withnewtxtextand/ornewtxmathin place oftxfontsget rid of any packages? How dotimes(-itsc) andtxfonts/newtx...interact or overlap? For example, dotimesandtxfontspartially override each other? What is the precise effect of me loading firsttimes-itscand thentxfonts? - And how does
mathptmxcompare to the above? - Any caveats regarding package loading order, especially with respect to
amsmath?
(This question is quite general, so general answers will be fine.)
UPDATE: New insights:
mathptmxsupersedestimes.- The superscript numbers are larger than those of
timesand too large for my taste, though this is probably a feature by design.
- The superscript numbers are larger than those of
newtxtext/newtxmathsupersede (in combination)txfonts. Withnewtxtext/newtxmath, I get:- larger subscript numbers
- smaller, thicker, and lower-placed footnote numbers
- Italic small caps were previously only offered by
times-itsc; nownewtxtextoffers them too. (Thanks, Michael Sharpe!)

