Lars Huttar wrote:

> Interesting.
> As a newbie to typesetting, reading the TeXbook, I certainly wondered
> which "axes" Knuth meant 'roman' to refer to... he simply describes it
> as 'normal "roman"' and gives a visual example. So far, all I'd gathered
> was that it meant "not italic."

you should keep in mind that plain tex is not meant as general puspose 
macro package but as base under Don Knuths own book related styles

for instance, there is no general font system, just a bunch of 
definitions related to computer modern and math; also there is some math 
setup, some register management, some structure commands and a bit of 
tabular stuff

at that time i think that the general idea was that one would write a 
style for each book (or series) and that a plain like package can be 
used as basis

context is (like latex, lamstex, inrstex, amstex, ...) a more generic 
and configurable macro package

both methods (dedicated vs generic) have their (dis)advantages

> If it's designed not to do that in ConTeXt -- i.e. the ConTeXt designers
> decided to change the semantics of one of the basic control sequences in
> TeX, rather than merely providing a different one with new semantics --

not in tex, since tex itself has no macros defined, but in plain tex


Hans

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