[texhax] d(whatever)

[Tom Blyth]

I have a book of Integral Tables by Meyer Hirsch dated 1823 which
is translated from German.  In it all the dx appear as the
factory-sealed object ${\textup d}x$.


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Emeritus Professor T.S. Blyth, Mathematical Institute,
University of St Andrews, North Haugh, St ANDREWS, 
Fife KY16 9SS,  Scotland.
tsb at st-and.ac.uk   or   tsblyth.prof at btinternet.com
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