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  • $\begingroup$ The OP has the arguments a,b,c in a list. How do you get them from there into the part Hold[a,b,c] of your code at the end (without literally pasting them there of course)? $\endgroup$ Commented Mar 22, 2013 at 19:46
  • $\begingroup$ @SjoerdC.deVries I interpreted the problem so that it is not important how there are initially stored. One could start with the arguments: Unevaluated[{a,b,c}]/.{args__}:> ({a_,b_,c_} /. {patt___} :> SetDelayed @@ Hold[int[patt]], NIntegrate[f[args], {x, 0, 1}]]). Does this address your concern? $\endgroup$ Commented Mar 22, 2013 at 19:55
  • $\begingroup$ Actually not. Apart from the syntax error (Hold[int[patt]] has a ] too much), you again paste the arguments in the code instead of using the variable (argument) that contains them. I really believe that you should work from the named list as this seems part of the question (the OP mentions a really lengthy list). $\endgroup$ Commented Mar 22, 2013 at 20:09
  • $\begingroup$ @SjoerdC.deVries Sorry for the syntax, I did not test this one (usually I always test). To address your objection: Hold[argument]/.OwnValues[argument]/.Hold[{args__}]:>..., the rest the same as before. $\endgroup$ Commented Mar 22, 2013 at 20:11
  • $\begingroup$ Great, works as a charm. $\endgroup$ Commented Mar 22, 2013 at 20:25