Bug(?) in matrix panel?

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Bug(?) in matrix panel?

Nitecki, Zbigniew H.
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
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Re: Bug(?) in matrix panel?

Herbert Schulz


> On May 2, 2020, at 6:00 PM, Nitecki, Zbigniew H. <[hidden email]> 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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Re: 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 <[hidden email]> wrote:
>
>
>
>> On May 2, 2020, at 6:00 PM, Nitecki, Zbigniew H. <[hidden email]> 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)
>
> ----------- Please Consult the Following Before Posting -----------
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Re: Bug(?) in matrix panel?

Herbert Schulz


> On May 2, 2020, at 6:58 PM, Nitecki, Zbigniew H. <[hidden email]> wrote:
>
> 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

Howdy,

\right[ is a perfectly legitimate command and argument but two \right's in a row with no intermediate \left is a problem.

Good Luck,

Herb Schulz
(herbs at wideopenwest dot com)

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Re: Bug(?) in matrix panel?

Nitecki, Zbigniew H.


> On May 2, 2020, at 20:11, Herbert Schulz <[hidden email]> wrote:
>
>
>
>> On May 2, 2020, at 6:58 PM, Nitecki, Zbigniew H. <[hidden email]> wrote:
>>
>> 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
>
> Howdy,
>
> \right[ is a perfectly legitimate command and argument but two \right's in a row with no intermediate \left is a problem.
Is that still a problem if they use different delimiters (say left[… \left( …\right)…\right]  —that is, nesting is problematic?
Z

>
> Good Luck,
>
> Herb Schulz
> (herbs at wideopenwest dot com)
>
> ----------- Please Consult the Following Before Posting -----------
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> List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex

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Re: Bug(?) in matrix panel?

Herbert Schulz


> On May 2, 2020, at 11:57 PM, Nitecki, Zbigniew H. <[hidden email]> wrote:
>
>
>
>> On May 2, 2020, at 20:11, Herbert Schulz <[hidden email]> wrote:
>>
>>
>>
>>> On May 2, 2020, at 6:58 PM, Nitecki, Zbigniew H. <[hidden email]> wrote:
>>>
>>> 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
>>
>> Howdy,
>>
>> \right[ is a perfectly legitimate command and argument but two \right's in a row with no intermediate \left is a problem.
> Is that still a problem if they use different delimiters (say left[… \left( …\right)…\right]  —that is, nesting is problematic?
> Z
>>
>> Good Luck,
>>
>> Herb Schulz
>> (herbs at wideopenwest dot com)
>>

Howdy,

As far as I know there has to be a \left or \mid before a matching \right so nesting should be OK.

Good Luck,

Herb Schulz
(herbs at wideopenwest dot com)

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