Post by LewisPost by Athel Cornish-BowdenPost by John VarelaOn Fri, 1 Mar 2019 17:45:04 UTC, "Peter Duncanson [BrE]"
Post by Peter Duncanson [BrE]Post by B***@37.comWhat's a Chemical Bank?
As others have said it was "The Chemical Bank".
As Wikip says, it got the word Chemical in its name because it
was originally a division of the New York Chemical
Manufacturing Company.
https://en.wikipedia.org/wiki/Chemical_Bank#Founding_and_early_history
That's sort of like the Chemical Rubber Handbook. (Before posting
Post by LewisPost by Athel Cornish-BowdenPost by John Varelathis, I googled to see if it still exists. It's in its 99th
edition. My copy is the 38th edition. I suppose the integral
tables and LaPlace transforms haven't changed much.)
They went years ago. I bought it in Berkeley in about 1974 (I don't
know which edition it is, because it's in my office and I'm not). I
used the mathematical tables more than anything else, especially
for integrals, but when it was falling apart I refrained from
replacing it because I saw that the mathematical tables were no
longer included.
Mathematical tables are not nearly as useful nor as accurate as any
generic calculator with scientific function on it. Or, of course, you
can simply type the entire function into google.
It would have to be a pretty good calculator to do algebra. Most of them
can only do arithmetic.
I have often needed a "simplify" function that will take a long
complicated algebraic expression and reduce it to a simpler form. There
is software that can do that, but I've never seen it in a calculator.
Ah, but I see what you mean about Google. I've just tried "integral cos
x dx" and it pointed me to a web site with a table of integrals. I guess
that's as good as having a table of integrals in a printed handbook.
--
Peter Moylan http://www.pmoylan.org
Newcastle, NSW, Australia