MaplePrimes - answers and comments on Question, Isotopes and elements in Maple

procedure for error

Alejandro Jakubi — Wed, 06 Mar 2013 12:49:05 Z

It seems that there is a procedure just for producing an error message:

interface(verboseproc=3):
with(ScientificConstants):
GetElement(Ra,atomicweight);
88, atomicweight = [value = (proc()
option `Copyright (c) 2002 Waterloo Maple Inc. All rights reserved.`;
    error "element is radioactive, most stable or best known isotope has\
     mass number 226"
end proc), uncertainty = undefined, units = 1]

Certainly, this package is quite outdated, see ?Screfs . E.g. it states that CODATA was last accessed eleven years ago...

isotope table was maple's first

Christopher2222 — Fri, 08 Mar 2013 07:25:14 Z

Interestingly the nice table of isotope procedure I wrote here in Mapleprimes for Maple showed up in the following release of Mathematica. Hmm... very interesting. Although the code written for Mathematica is about 10 x's smaller, Maple was first. Actually I remember looking, at the time, to see if such a table existed in Mathematica or Matlab before embarking on such a project. It seems to me like they took that page right out of our books. Time to start thinking/coding and up the ante a little more I think.

update

Christopher2222 — Wed, 06 Mar 2013 20:35:30 Z

It would be nice to see some updates in that package.

I think the message for atomic weight should be displayed even if verboseproc=1