[OS X TeX] Bug(?) in matrix panel?

[Nitecki, Zbigniew H.]

I’m using the Editor/Front End that comes with TeXShop.  I kind of suspect my question may have been a red herring—I noticed at one stage (after writing my email) as I was meticulously rewriting every matrix expression, that it is possible that one of them had \right[ instead of \right]—it’s hard to tell
with my eyesight.  But that could be what happened.  I’ll return with the question (and better details) if I encounter this again.
Thanks for  responding.

Z

> On May 2, 2020, at 19:51, Herbert Schulz <herbs at wideopenwest.com> wrote:
> 
> 
> 
>> On May 2, 2020, at 6:00 PM, Nitecki, Zbigniew H. <Zbigniew.Nitecki at tufts.edu> wrote:
>> 
>> I am finding that when I try to compile source code involving matrices, the opening “\left[“ (for a matrix) or “\left|” (for a determinant) is read by the compiler as “\let” and returns an error message.  This happens more oftern when I have typed the phrase myself, and sometimes it is corrected by going to matrix panel and re-inserting the matrix, but sometimes also the phrase when inserted by matrix panel returns the same error.  I’m finding it unpredictable
>> when it will happen, but when it does I am in trouble.
>> 
>> 
>> Is this a known error, or is it something about my computer?
>> 
>> Z
> 
> Howdy,
> 
> What Editor/Front End are you using? Can you give us a sample file that shows this behavior?
> 
> Good Luck,
> 
> Herb Schulz
> (herbs at wideopenwest dot com)
> 
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