# to tilde or not to tilde

Mon Oct 7 18:29:59 CEST 2019

"The Printing of Mathematics" by Chaundy, Barrett, and Batey, Oxford
University Press, 1954,  says that mathematics should be punctuated as
normal text. For instance, if a formula is at the end of a sentence then
it should be followed by a full stop (period).

"Mathematics into Type" by Ellen Swanson, American Mathematical Society,
1999, shows many examples of punctuating math with commas and periods.

Peter W.

On 06/10/19 23:29, Schneider, Thomas (NIH/NCI) [E] via texhax wrote:
> Paulo:
>
>> NO centered mathematical formula should contain any punctuation at
>> the end of the line -- even if it is to terminate a sentence.
>>
>> Punctuation have a role in typography -- to introduce a pause at
>> reading -- and with a centered formula that pause already EXIST. The
>> correct is:
>>
>>
>> A = \pi r ^2
>>
>>
>> even if it is ending a sentence or a paragraph.
> I think we will just have to agree to disagree.  I find the comma
> useful for pausing while the period ends a sentence and otherwise I
> feel I'm hanging.  In any case, the journal accepts them.
>
> Tom
>
>    Thomas D. Schneider, Ph.D.
>    Senior Investigator
>    National Institutes of Health
>    National Cancer Institute
>    Center for Cancer Research
>    RNA Biology Laboratory
>    Biological Information Theory Group
>    Frederick, Maryland  21702-1201
>    schneidt at mail.nih.gov
>    https://alum.mit.edu/www/toms
>
>