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Re:Extracting units from a list of values
*To*: mathgroup at smc.vnet.net
*Subject*: [mg27430] Re:Extracting units from a list of values
*From*: bghiggins at ucdavis.edu (Brian Higgins)
*Date*: Sun, 25 Feb 2001 20:55:34 -0500 (EST)
*Organization*: The Math Forum
*References*: <avsmaaxiped4@forum.mathforum.com>
*Sender*: owner-wri-mathgroup at wolfram.com
My earlier post does not transform integers>1 at level 1 in the list.
The following seems to be more general and does the required task
In[104]:=mylist2 = {3, 2*Pi, 3*E*Meter^2, (3.5*Meter^2)/s, Meter*Pi,
3/(Pi*s), 3.75, Sqrt[3]/Sqrt[7]}
In[136]:=mylist3 = DeleteCases[(If[NumericQ[#1], 1, #1] & ) /@
mylist2, _?NumericQ, {2}]
Out[136]={1, 1, Meter^2, Meter^2/s, Meter, 1/s, 1, 1}
and then a list of the numerical values is
In[137]:=mylist2/mylist3
Out[137]={3, 2*Pi, 3*E, 3.5, Pi, 3/Pi, 3.75, Sqrt[3/7]}.
Brian
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