Thanks, Dr. or Mr. Shigeharu Takeno, for kindly taking the time to add your points, particularly on how to use \displaystyle in the math mode in LaTeX. I think Thorsten may have mentioned using displaystyle as another solution to my sort of problem in the LaTeX-community Internet posting of someone else to which I earlier referred. With your example it is good to see how to use \displaystyle in the math mode.

Sorry, earlier in this chain of e-mail letters I used the words "partly imaginary" in a way that might have been ambiguous for some people. I should have instead used something unambiguous like "partly made-up;" "imaginary" could have meant something times the square root of negative one, which I did not mean.

Pat
----- Original Message ----- From: "Shigeharu TAKENO" <[email protected]>
To: "Pat Somerville" <[email protected]>
Cc: <[email protected]>
Sent: Tuesday, November 03, 2009 11:21 PM
Subject: Re: [l2h] A sum in the denominator of a fraction didn't lookquite normal.


shige 11/04 2009
----------------

Pat Somerville wrote:
\begin{equation}
y=\sum_{i=1}^n x_i
\end{equation}

, it would look as it should after running a latex2html command on
the .tex file with the "i=1" below the summation sign (capital Greek
letter sigma) and the "n" above the summation sign.  But when a sum
was arranged to be in the denominator of a fraction, say if I were to
 type something like this:

\begin{equation}
y=\frac{1}{\sum_{i=1}^n x_i}
\end{equation}

, in the resulting latex2html, output, .html file the items
corresponding to "i=1" and "n" were not respectively placed at the
top and bottom of the summation sign.  Instead they were placed right
after the summation sign, more like you might expect for the upper
and lower limits following an integral sign.

I think this is not a question for latex2html but for LaTeX.

If you want the output such as the latter one for the first
source, you may do

\begin{equation}
 y=\textstyle\sum_{i=1}^n x_i
\end{equation}

If you want the output such as the first one for the latter
source, you may do

\begin{equation}
 y=\frac{1}{\displaystyle\sum_{i=1}^n x_i}
\end{equation}

+========================================================+
Shigeharu TAKENO     NIigata Institute of Technology
                      kashiwazaki,Niigata 945-1195 JAPAN
[email protected]   TEL(&FAX): +81-257-22-8161
+========================================================+


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