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Using subscripts in function-parameter names
*To*: mathgroup at smc.vnet.net
*Subject*: [mg71653] Using subscripts in function-parameter names
*From*: eriwik at student.chalmers.se
*Date*: Sun, 26 Nov 2006 03:48:35 -0500 (EST)
I'm quite new to using Mathematica and I'll probably not use it much in
the future either, but right now I need to use it to calculate some
values for comparison. My problem is that I can't get seem to get a
function to work if the parameters have a subscript in the name. The
following demonstrates the problem (copied from the notebook-file):
(F[\(x\_1\) _, \(x\_2) _] := \[Sum]\+\(i = 1\)\%2 x\_i;\)
Or put another way, a function F that takes two arguments
Subscript[x,1] and Subscript[x,2] and runs a summation over
Subscript[x,i] from i = 1 to 2.
Now, this is quite a contrived example and could easily be expanded by
hand, but what I need it for is much harder, with 8 parameters and
nested summations. As I understand perhaps Utilities`Notation` could be
used, but I don't understand how to use it. Could someone give a short
demonstration (if that is the solution), perhaps on the above example?
--
Erik Wikström
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