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Asked: 2026-05-19T11:33:34+00:00

I have an expression which involves x1,x2,…,x100, I also have a list lst with

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I have an expression which involves x1,x2,…,x100, I also have a list lst with 100 elements, how to apply the rule to this expression to achieve something like the following:

exp/.{x1->lst[[1]],x2->lst[[2]],...,x100->lst[[100]]}

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1 Answer

  1. Editorial Team
     exp /.  Table[Symbol["x" <> ToString[i]] -> lst[[i]], {i, 1, 100}]

    So you don’t need to write X1,X2, … X100

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