[l2h] Black bars under integral signs when thelimitsof integration are -\infty and +\infty or analgebraicfraction for each of the upper and lower limits

Pat Somerville l_pat_s at hotmail.com
Sat Apr 16 03:39:59 CEST 2011

Thanks, Nasser M. Abbasi, for kindly informing me that you have been using 
Nepbm 10.0.  Please don't take this personally.  That is take me as a 
"cause-of-a-problem hunter."  If you were to update Netpbm from version 10.0 
to version 10.35.74 and you would afterwards see the unwanted black line 
segment under the .html equivalent of \int\limits _{-\infty}^{+infty}, then 
the newer version of Netpbm would be worse with respect to unwanted black 
line segment under the integral sign and its limits than your older version 
of Netpbm.  And if so, furthermore within Netpbm 10.35.74 the problem of 
perhaps too narrow a rectangle enclosing the image could be started in 
pngtopnm, pnmcrop, or pnmtopng.  But you might not want to upgrade to Netpbm 
10.35.74 just to make such a test.---You might instead prefer to obtain an 
even newer version of Netpbm.  But thanks to Dr. Shigeharu Takeno we have at 
least one other, perhaps more general solution to eliminating the unwanted 
black segments under images that extend or otherwise would extend beyond 
their enclosing rectangles, namely to use \hspace{....} I suppose on the 
left or right side where the mathematical expression would extend over, 
respectively, the left or right border.--Professor Ross Moore's solution, 
mentioned to us within the past 48 hours or so, of using \phantom to gain 
more horizontal space very possibly might well turn out to be another 
solution.  Thanks, Nasser M. Abbasi, for your kind attention to the problem 
I faced!


From: "Nasser M. Abbasi" <nma at 12000.org>
Sent: Friday, April 15, 2011 12:55 AM
To: <latex2html at tug.org>
Subject: Re: [l2h] Black bars under integral signs when thelimitsofintegrationare -\infty and +\infty or analgebraicfraction	for each of the upper and 
lower limits

> On 4/14/2011 9:42 PM, Pat Somerville wrote:
>> But I have been wondering if our
>> versions of Netpbm could have been different and have been responsible 
>> for
>> our different results; in particular the version of pnmcrop and the
>> parameters used with it could be very important in the outcome regarding
>> removing the unwanted black line segment.  My version of Netpbm has been
>> 10.35.74.  There may be other ways, Nasser, in which you may learn what 
>> your
>> version of Netpbm and/or pnmcrop is/are in your Ubuntu Linux operating
>> system.  For example, try typing the command "pnmcrop -v" or
>> "pnmcrop -version."
> Here it is:
> pnmcrop -version
> pnmcrop: Using libpbm from Netpbm Version: Netpbm 10.0
> pnmcrop: BSD defined
> pnmcrop: RGB_ENV='RGBDEF'
> pnmcrop: RGBENV= 'RGBDEF' (env vbl is unset)
> hth,
> --Nasser
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