On Tue, 24 Jan 2017 14:15:08 +0100, Hans Hagen <pra...@wxs.nl> wrote:

thanks for the quick reply and sorry for my not being precise. correction/addition follows:

On 1/24/2017 11:33 AM, j. van den hoff wrote:
hi everybody,

after a 2 year hiatus I'm just giving `context' a second try (so, really
not much experience so far).

I updated to the latest version (0.63) before proceeding.

0.63 what? luatex? then you need to check things as we're beyond 1.00 now

I was refering to the `context --version' output:

resolvers       | trees | analyzing 'home:texmf'
mtx-context     | ConTeXt Process Management 0.63
mtx-context     |
mtx-context | main context file: path_to/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context     | current version: 2017.01.17 17:37

I _was_ under the impression that this is current since I did an update and `current version' gives a date from last week. or that's what I believed would happen, when re-running `first-setup.sh': am I mistaken? if this is a stupid question I'd accept a RTFM answer ;-).

two observations:

in a new document including assorted equations everything went fine
until I tried something like

x = \left 1 + 2 \right

\left( ... \right)

left and right take an argument that has to be some known open or close operator

yes, I know. sorry for the glitch. I _meant_

  x =  \left ( 1 + 2 \right )

and _that_ is what's still causes the `Undefined control sequence' (both, in the new as well as the two year old unmodified document) -- actually it is thus reported in
the error message (in the previous mail, too):

"l.472 x = \left (
                1 + 2 \right )"

which caused an error:

 ! Undefined control sequence

\strc_synonyms_insert_meaning ...urrentsynonymtag
\math_left ...ame \??mathleft \meaning \nexttoken
\expandafter \l...
l.472 x = \left (
                1 + 2 \right )

an old document (not modified these 2 years) does no longer compile due
to apparently the same problem (not understanding `\left', `\right'.

question: my understanding is, that `context' supports "everything" out
of the box (notably equations) and there is no need for explicit loading
of additional packages? so `\left' etc. _should be defined (and it
_used_ to work 2 years ago)? what am I missing?

thx, joerg

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