[pdftex] Rerunning pdflatex

[Prabhu]

Hi,

>From longtable package,

http://www.tex.ac.uk/tex-archive/macros/latex/required/tools/longtable.pdf



“Note: Various parts of the following table will not line up correctly until
this document has been run through LATEX several times. This is a
characteristic feature of this package, as described below.”



Says we have to rerun pdflatex several times so that table will line up
correctly. I am unable to understand how re-running the same .tex file makes
the alignment right.



When we run pdflatex again and again for the same TEX file, How the
alignment problem is solved?



Thanks

Prabhu.
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